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Thursday, September 1, 2011

New 'Goldilocks' Exoplanet Could be the Most Earth-Like We've Yet Seen



Just a question of cloud cover
Needs More Clouds A rendering of what an alien habitable planet might look like if we could ever get close enough to see it. Illustration courtesy L. Calçada, ESO
Scientists have tracked down another goldilocks planet 31 light-years from Earth, and according to astronomers it has some strong points in its favor when it comes to the possibility of harboring the ingredients for life. HD85512b orbits an orange dwarf in the constellation Vela, and it’s just the right distance from the sun--and just the right mass--to rank among the most Earth-like planets ever discovered.
And by “among,” we mean really one of just two (or three, depending on how you feel aboutGliese 581g). Of the hundreds of exoplanets astronomers have recently discovered orbiting distant stars, only one--Gliese 581d--has been of the proper mass and distance from its star to be considered a strong candidate for habitability. Nearby Gliese 581g was once thought to be even more Earth-like than 581d, until some scientists asserted that 581g doesn’t even exist--a point that is still under debate.

HD85512b was discovered by the ESO’s High Accuracy Radial velocity Planet Searcher, or HARPS, in Chile (it’s the same instrument that found Gliese 581d. The data show that HD85512b is roughly three-and-a-half times the mass of Earth and rings its planet on the inner fringe of the so-called “goldilocks zone” that is not to distant and not too close to harbor liquid water. It’s size is also indicative of an Earth-like atmosphere of oxygen and nitrogen rather than the hydrogen and helium that dominate the atmospheres of larger worlds.
That alone makes it a potential candidate for life, but HD85512b has a couple of other characteristics working for it. For one, its orbit is almost perfectly circular and stable, so any climate on the planet wouldn’t swing wildly as it orbits. The planetary system is older than our own--a full one billion years older--so clearly it’s had enough time for life to potentially have developed there. in the same vein, its star is also more mature than our sun so it is less prone to violent solar activity that could destabilize the planet’s atmosphere.
Of course, there’s no way to tell if it actually has an atmosphere with modern instruments, and atmosphere is a critical ingredient here. Since HD85512b is orbiting on the inner portion of the goldilocks zone, it is more akin to Venus than to Earth in the amount of solar energy it’s taking on. But scientists speculate that cloud cover of fifty percent or more could offset that proximity enough to allow life to thrive--albeit a kind of life more suited to a balmy, hot environment (relative to Earth’s).
On average, Earth boasts 60 percent cloud cover so the idea of HD85512b having 50 percent isn’t so far-fetched. In fact, it’s probably more likely than the idea of humans building a light-speed spacecraft and then making the 31-year journey to go in for a closer look at the weather. But it’s fun to think about.

Samsung Note, Half-phone Half-tablet, Debuts in Berlin



Can a bold tablet-smartphone merger pay off?
Samsung Galaxy Note Samsung
Taking a unique approach to device convergence, Samsung has chosen not to incorporate a phone into a tablet, or even a phone that clips into a computer. The Korean electronics company today announced a device that guides the smartphone and tablet together, meeting in the middle. The 5.3-inch Samsung Galaxy Note may at first glance appear to be a bloated Galaxy smartphone, but with the inclusion of a stylus and a totally new type of screen, Samsung claims the Note will take its place as the only device you'll ever need.
Running on Android Gingerbread 2.3, the latest iteration of Google's smartphone OS, the 6.3-ounce Note (comparison: the iPad 2 is 21.28 ounces, the iPhone 4 is 4.8 ounces) tilts more towards its cellphone brethren than its Galaxy Tab cousins--at least the newer, better Galaxy Tabs, which run Android Honeycomb. Granted, the device essentially has to run Gingerbread (designed for phones) over Honeycomb (designed for tablets), given the fact that Honeycomb doesn't have a native phone app. But beyond that, Samsung has taken pains to give the Note the multi-pane feel of a larger-screen tablet. Within its upgraded version of TouchWix UX--TouchWiz is Samsung's custom-made Android skin--users can split the screen into multiple panes from different apps, including the native TouchWiz IM, email and music apps. That means you can actually view, though not interact with, multiple apps at once--a tablet-like ability, and a unique one at that. Still, an eight-megapixel rear-facing and two-megapixel front-facing camera also smack significantly of a top-tier handset.
But what does the most to set the Note apart from being just an overblown smartphone is its stylus input. (We've seen styli before, even one we quite liked, but it never feels quite natural--perhaps it'll feel better on the Note, since it's been designed from the ground up for stylus use.) The approximately five-inch-long pen slips neatly into the posterior of the handset. While the 5.3-inch AMOLED touchscreen is by nature a touch-sensitive touch panel, once the stylus nears the screen, it triggers a magnetic current that switches the screen to a resistive panel. That switch allows the Note's stylus-based input to respond not only to touch, but pressure. None of Samsung's launch apps wil respond to such pressure, but the company says that third-party developers are already working with the stylus SDK to code pressure-responsive doodle and note-taking apps. Like a return to the Palm Pilot days of yore (note: RIP Palm/WebOS), the Note translates scrawled notes to editable text, it captures doodles, and it allows you to annotate and embellish existing files. It's also a quicker and easier way to cut and paste text and images on-screen. There's a concern with resistive screens that the layer of film required for resistive input can impair the clarity of the screen--it remains to be seen if that's true for this screen in particular.
A bigger question, though, is if a half-tablet can succeed as a phone, and if a half-phone can succeed as a tablet. Holding the nearly six-inch slab up to my smallish face was, to say the least, odd-feeling. The microphone landed well below my chin, in a place sure to be muffled and obstructed by even the least-animated of conversations. For those with smaller pockets, the phablet (tablone?) may not be pocketable at all, which could be a deal-breaker for some.
On the more tablet-centric side, the Note is equipped with a 1.4-gigahertz dual-core processor and compatibility with both LTE and HSPA+ networks, meaning it could land on Verizon, AT&T, or T-Mobile. We all know what that means: plenty of power and bandwidth to stream high-def web video -- that is, should Netflix ever roll out to the entire Android community (ahem, ahem). And the screen, while it's not exactly as substantive as the much-lauded 10.1 Galaxy Tab, nor the also-just-announced 7.7-incher, is just enough of a step up from a Galaxy smartphone to make a noticeable difference in the viewing experience.
There's currently no word on which U.S. carrier will release the Note, so naturally there's also nary a clue as to how much it will cost. An educated guess would land a device like this somewhere around the $500 range; but again, that's just one gal's guess. We'll keep you updated on the Note as we learn more.

Sri Vinayagar Song - நாயகனை பாட நான் என்ன தவம்

Noise pollution


There Is Too Much Noise In The Modern World
One of the great plagues of modern life is barely talked about at all. People tend to think they’re the only ones bothered by it and to raise a fuss would be to act like some cantankerous crazy person. They also tend to dismiss it as nothing more than a harmless and occasional irritant. In fact, it is a serious issue which can have damaging effects on our physical and intellectual health and our general sense of well-being. It is, paradoxically, a silent killer : Noise.
 

If you enjoy listening to music, you will tend to find your enjoyment of it constantly disrupted by external noise sources. Perhaps if you listen to intense, wall-of-sound music, such as heavy metal, at high volumes, you can successfully screen the world out, but not all music is of this nature. Many serious musicians and musicologists agree that the finest music ever written is Beethoven’s late string quartets. Subtle and spiritual, punctuated with pauses and quiet passages, it would be today almost impossible to get through a listening of it from beginning to end without enduring an interruption of some sort. Whether it’s an ice cream van playing its cacophonous chimes, an aircraft flying overhead, a noisy neighbour with a gardening machine, a car alarm going off or just traffic rumbling along outside, you can be certain that something will turn up to disrupt your enjoyment.

In summer, when the sun is out, you can be sure that neighbours with noisy gardening machines are going to be out too. Thanks to them, the average afternoon spent sunbathing in the garden is going to sound much like it would if you were sunbathing in the middle of a car factory instead. Was this changeover to electrified gardening equipment really necessary? Did all the many generations of human beings before us not manage to tend their crops and gardens perfectly well without it?

Curiously, some of this invasive noise even has statutory protection. I find it amazing, for example, that the clangourous music of ice cream vans is specifically sanctioned by law. If a greedy hawker of wares decided to stand outside your house with a loudspeaker and read out a list of what he was selling, there is no doubt that he would contravening some local ordinance and the police would soon put a stop to it. Make it music instead of speech and put it in a van, however, and suddenly he enjoys legal protections.

In recent decades the popularity of fireworks has dramatically increased in Britain. Once reserved for special occasions such as the celebration of the judicial murder of freedom fighter Guy Fawkes on November 5th, they now seem to be used for weeks if not months stretching both before and after this hallowed date. The evenings of autumnal Britain are now regularly punctuated by the sighs, shrieks and pops of fireworks exploding. Dogs run around frightened in the home, trembling with fear as they move from room to room in a vain attempt to escape the sounds that haunt them.

Do you ever hear birds singing at night where you live? Ever wondered why they do this? Researchers found that birds had started singing at night because it was the only time they could find enough peace and quiet to facilitate this mode of communication. Competition from noise pollution during the day was so great that they thought it wasn’t worth bothering then.

We tend to think of noise as no more than an irritant. But this is to underestimate its effects. Studies have shown that the presence of noise can induce or aggravate serious health problems. For example, numerous studies have found that those regularly subjected to the noise of overflying aircraft suffer from high blood pressure to a much greater extent than those living elsewhere. Even noise of which we are not consciously aware, because it occurs at night and we are asleep, can have a damaging effect on our health. In fact, research as shown that noise can bother us and adversely affect our health before we are even born! Babies in the womb can react to noise and studies have found that women living in the presence of environmental noise are more likely to suffer complications during childbirth or give birth to children with birth defects.

Exposure to noise releases stress hormones such as adrenaline, cortisol and noradrenalin into our bloodstream. The presence of these hormones is linked to death through heart-related illness. The World Health Organisation (WHO) studied the issue of noise-related illness in Europe and concluded that approximately 3% of all deaths through heart complications could be attributed to noise. In Britain, this means that between 3000 and 4000 people are dying each year because of noise, far more than have ever died, or are ever likely to die, through terrorism. It’s a silent September 11th occurring each year. Yet no one cares about it. No one is proposing to overhaul our societies, do away with our civil liberties or reshape world politics in response to the problem of noise pollution.

The European Commission considers that living close to an airport is a significant risk factor for heart-related health problems. Moreover, it found that 20% of the European Union’s entire population fell into this category.

Noise also disrupts our concentration. A study of pupils at a school in Munich examined the effects of aircraft noise on pupils’ learning. The school was in the flight path of Munich’s old airport. But because a new airport was being constructed in a different location, and the school would be outwith the flight path of the new airport, a comparison could be conducted. It found that the test results of the children improved dramatically once the noise was gone. This chimes perfectly with an international study which looked at the reading abilities of different groups of children who had varying levels of exposure to environmental noise, principally from overflying aircraft. It found that those subjected to the noise had a markedly lower reading age than the control groups.

For a long time, the issue of noise was simply not on the public radar screen. There were no organisations dedicated to campaigning about it. It was not considered a serious issue. Thankfully, that is now beginning to change. In Britain, for example, there is now the Noise Association which campaigns on noise-related issues. Thanks to them, a Noise Action Week will take place between May 19-23.

It is time that both we and the politicians who represent us began to take the problem of noise seriously. Laws and regulations designed to limit the impact of noise, and the mental and physical health problems which flow from it, should be introduced and enforced. And we should all begin to think about whether we are contributing to the problem, or to its solution.

What is Noise Pollution?



   
Noise pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible. As with other forms of energy pollution (such as heat and lightpollution), noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves of a similar type in the same environment. Thus, the definition of noise pollution is open to debate, and there is no clear border as to which sounds may constitute noise pollution. In the most narrow sense, sounds are considered noise pollution if they adversely affect wildlife, human activity, or are capable of damaging physical structures on a regular, repeating basis. In the broadest sense of the term, a sound may be considered noise pollution if it disturbs any natural process or causes human harm, even if the sound does not occur on a regular basis.
The prevailing source of artificial noise pollution is from transportation. In rural areas, trainand airplane noise can disturb wildlife habits, thereby affecting the manner in which animals in areas around train tracks and airports hunt and mate. In urban areas, automobile, motorcycle, and even entertainment noise can cause sleep disruption in humans and animals, hearing loss, heart disease (as a result of stress), and in severe cases even mental instability. A notable exception to the rule is the electric, or hybrid-electric, automobile. Hybrid vehicles are so quite, in fact, that legislation is pending to actually make them louder. This is in response to numerous injuries in which pedestrians, unaware of a hybrid vehicle's presence, have been struck by such vehicles in parking lots and pedestrian crosswalks.
Noise Pollution logo
Although most developed nations have government agencies responsible for the protection of the environment, no nation has a single body that regulates noise pollution. In the United States, regulation of noise pollution was stripped from the federal Environmental Protection Agency and passed on the the individual states in the early 1980's. Although two noise-control bills passed by the EPA are still in effect, the agency can no longer form relevant legislation. In the United States, Canada, Europe, and most other developed parts of the world, different types of noise are managed by agencies responsible for the source of the noise. Transportation noise is usually regulated by the relevant transportation ministry, health-related work noise is often regulated by health ministries and worker's unions, and entertainment noise such as loud music is a criminal offense in many areas. As the bodies responsible for noise pollution reduction usually view noise as an annoyance rather than a problem, and reducing that noise often hurts the industry financially, little is currently being done to reduce noise pollution in developed countries.

Reducing Noise Pollution

 Author: Gayan Virajith
Everywhere we go these days, there is NOISE. Barking dogs, loud stereos, noisy exhausts, shop adverts: noise is everywhere
Sources of noise: All modes of transport create noise pollution. Some production factories make noise; they experience noise pollution and its adverse effects. Besides transportation noise, noise can come from factory appliances, power tools and audio entertainment systems.
Measures of noise: Noise pollution is measured in decibels. When noise is at 45 decibels, no human being can sleep, and at 120 decibels the ear will be in pain and hearing begins to be damaged at 85 decibels.
Effects of Noise pollution
Human health: Noise pollution will affect our health and behavior in a number of ways including deafness causing lack of sleep, heartburn, high blood pressure, and heart disease.
Speech interference: Noise more than 50dB can be very difficult to hear and interpret and cause problems such as partial deafness.
Sleep interference: Very high levels of noise can wake people from their sleep with a jerk and keep them awake or disturb their sleep pattern. This could make them irritable and tired the next day.
Decreased work performance: Increased noise levels gives rise to a lack of concentration and accuracy at work, and reduce one’s productivity and performance.
How to avoid sources of noise pollution
Traffic: Please don’t live or work near major intersections or roads, shopping centers and sporting facilities. Valleys and falls are noisier than flat roads.
Barking dogs: As a dog owner, you should make sure that your dog doesn’t annoy the neighbors with its barking and yowling.
Aircraft: Before buying a home, see how far it is from the local airport.
Neighbors: Be a good neighbor by not annoying those who live next door with your music or lawn mowing.
Solving noise problems: Many noise problems can be prevented by considering others and talking to overcome problems. Be a good and concerned neighbor by discussing a common problem calmly and in a collaborative spirit to find a common solution.

The space-age sickbay that diagnoses disease without need for tests from sight, smell and 'feel' of disease



A sickbay that uses space-age technology to diagnose diseases ranging from stomach bugs to cancer has been unveiled at a  British hospital.
The first of its kind, it contains a bewildering array of equipment, including probes designed for  missions to Mars.
The gadgets in the million-pound unit can detect illness without the need for painful and invasive tests. They combine information about the sight, smell and ‘feel’ of a disease to produce a diagnosis.
High-tech hospital: It looks like something out of a sci-fi film, but this is the latest sick bay to be unveiled in Britain
High-tech hospital: It looks like something out of a sci-fi film, but this is the latest sick bay to be unveiled in Britain
The unit is described as the first step towards the tricorder scanners that Star Trek’s Dr McCoy waved in front of patients’ bodies to diagnose and treat illness in the crew of the Starship Enterprise.
Professor Mark Sims, the Leicester University space scientist who led the project alongside Tim Coats, a professor of emergency medicine, said: ‘In the old days, it used to be said that a consultant could walk down a hospital ward and smell various diseases, as well as telling a patient’s health by looking at them and feeling their pulse.
Medical student Tom Geliot trials a new 'sick bay', which uses space-age technology similar to that used in science fiction series Star Trek to detect illness at Leicester Royal Infirmary
Medical student Tom Geliot trials a new 'sick bay', which uses space-age technology similar to that used in science fiction series Star Trek to detect illness at Leicester Royal Infirmary
Professor Tim Coats (right) and medical student Tom Geliot test out the expensive gadgets
Professor Tim Coats (right) and medical student Tom Geliot test out the expensive gadgets
‘What we are doing is a high-tech version of that to help doctors diagnose the disease. We are replacing doctors’ eyes with state-of-the-art imaging systems, replacing the nose with breath analysis, and the “feel of the pulse” with monitoring of blood flow using ultrasound technology and measurement of blood oxygen levels.’
The diagnostics development unit is part of Leicester Royal Infirmary’s A&E department. One group of instruments, the ‘eyes’, uses thermal imaging technology developed by the university’s space scientists to search for life on Mars to hunt for signs of disease via the surface of the human body.
For instance, it should be possible to get information about blood chemistry that points to liver or kidney problems without even taking a blood sample.
While some of the equipment is routinely used in hospitals around the country, other pieces were custom-built for the sickbay, making  it the only one of its type in the world. The unit will initially be used to check out patients thought to be suffering from heart failure, pneumonia and serious, body-wide infections – but the instruments have dozens of possible uses.


Read more: http://www.dailymail.co.uk/news/article-2032378/Space-age-sickbay-diagnoses-disease-need-tests.html#ixzz1Wh9j9vSD

Roman prostitutes were forced to kill their own children and bury them in mass graves at English 'brothel'



The babies of Roman prostitutes were regularly murdered by their mothers, archaeologists have found.
A farmer's field in Hambleden, Buckinghamshire, yielded the grisly secret after a mass grave containing the remains of 97 babies - who all died around the same age - was uncovered. 
Following a close study of the plot, experts have decided it was the site of an ancient brothel and terrible infanticides took place there.
The Yewden Villa excavations at Hambleden in 1912. Archaeologists at the site have found the remains of 97 babies they believe were killed by their prostitute mothers
The Yewden Villa excavations at Hambleden in 1912. Archaeologists at the site have found the remains of 97 babies they believe were killed by their prostitute mothers
With little or no effective contraception available to the Romans, who also considered infanticide less shocking than it is today, they may have simply murdered the children as soon as they were born.
Archaeologists say locals may have systematically killed and buried the helpless youngsters on the site. 
Measurements of their bones at the site in Hambleden show all the babies died at around 40 weeks gestation, suggesting very soon after birth. If they had died from natural causes, they would have been different ages.
Archaeologist Dr Jill Eyers, who lives locally, has been interested in the site for many years. She put together a team to excavate the site and is writing a book about her findings.
She said: 'Re-finding the remains gave me nightmares for three nights.
'It made me feel dreadful. I kept thinking about how the poor little things died. The human part of the tale is awful.
‘There were equal numbers of girls and boys. Some of the babies were related as they showed a congenital bone defect on their knee bones, which is a very rare gene.
'It would account for the same woman or sisters giving birth to the children as a result of the brothel.'
One of the infant skeletons found during the dig. Scientists believe the site was used to dump the bodies of prostitutes' babies because of a lack of contraception
One of the infant skeletons found during the dig. Scientists believe the site was used to dump the bodies of prostitutes' babies because of a lack of contraception
The Yewden villa at Hambleden was excavated 100 years ago and identified as a high status Roman settlement.
It is now covered by a wheat field, but meticulous records were left by Alfred Heneage Cocks, a naturalist and archaeologist, who reported his findings in 1921.
He gave precise locations for the infant bodies, which were hidden under walls or buried under courtyards close to each other. 
However, the matter was not investigated further until now. Cocks' original report was recently rediscovered, along with 300 boxes of photographs, artefacts, pottery and bones, at Buckinghamshire County Museum. 
Dr Eyers was suspicious that the infants were systematically killed because they were unwanted births  - a suspicion which has been confirmed by Simon Mays, a palaeontologist who has spent the past year measuring the bones.
Distressing: Part of one of the baby's skulls which was found at the site
Distressing: Part of one of the baby's skulls which was found at the site
Dr Eyers said 'He proved without doubt that all the infants were new-born. They were all killed at birth and all at the gestation period of between 38 and 40 weeks.
‘There are still little bits of the jigsaw to be pieced together. We want to see final figures of boys and girls and the relations to ascertain what sort of group we have here.
‘We also found a family of five buried in a well. Did they die in a fire or were they murdered?
‘There is another site about a mile down the river which we know nothing about but I think there must be a connection.' 

The find has been compared to the discovery of the skeletons of 100 Roman- era babies in a sewer beneath a bath house in Ashkelon, southern Israel, in 1988.

Invaders' hidden culture of death and debauchery

Ruling with an iron fist: A typical Roman soldier
Ruling with an iron fist: A typical Roman soldier
Nearly 2,000 years ago it was the Romans who were enjoying the pleasant climate and farming bountiful crops in this corner of south-east England.
The nearest Roman town was St Albans - or Verulamium - a busy market on Watling Street with its own gladiator theatre.
Life was tough, disease rife and hygiene for the poor dreadful, but the climate is thought to have been warmer than now, making farming easier.
The Roman name for Hambleden is lost to antiquity but the people would have been a mixture of native Celts and Roman settlers, most of them farmers growing wheat and barley and a mixture of other crops.
Living in houses made mostly of wood, some would have travelled the length of the empire in the army and settled in the fertile Thames Valley, but most would never have travelled any distance from home.
Despite the bloody image of the Roman Empire, Britain was - especially in the south - a peaceful and prosperous place for most of the period of the occupation.
Pottery found in Hambleden comes from modern-day Italy, France, Belgium and Germany, showing the trade which the Empire brought.
But it also brought a culture of debauchery and death - even to a tiny village near the Thames, or 'Tamesis' to the Romans - with gladiators a day's boat trip away in London ( Londinium), brothels, and unwanted babies left to die in the open.
The famously well-preserved remains at Pompeii revealed a city rife with brothels signposted with erotic frescoes tempting passers-by with phrases such as 'Hic habitat felicitas' (Here happiness resides) or 'Sum tua aere' (I am yours for money).
Unlikely as it seems, it is entirely possible that Hambleden could have supported a brothel, as it is so close to the Thames, a busy waterway bringing trade to and from London.
The two-storey building was a few hundred yards from the river, with plenty of signs of wealth in the coins and pottery found in the grounds.
The remains of writing tablets and stylae, used to write, were also found, telling of a place with extensive contact with the wider world.
Dr Simon Mays, a skeletal biologist at English Heritage, has examined the Hambleden Roman infant bones
Dr Simon Mays, a skeletal biologist at English Heritage, has examined the Hambleden Roman infant bones
Literacy was a sign of affluence, and rich men and women were in frequent correspondence with each other.
Correspondence found at Hadrian's Wall shows how they bickered over dinner parties, gossiped about friends and discussed fashion in notes to each other.
What went on inside the Hambleden villa is, of course, a matter of conjecture. But there is little doubt that the find of so many babies' skeletons proves that Roman Britain shared another part of the empire's culture - infanticide.
Illegal today, it was the opposite for the Romans, with the law making a child under two entirely the property of its father, to be disposed of as he saw fit - and if it was deformed, it was compulsory to put it to death. A letter from a Roman citizen to his wife, dating from 1BC, demonstrates the casual nature with which infanticide was often viewed:
'I am still in Alexandria. ... I beg and plead with you to take care of our little child, and as soon as we receive wages, I will send them to you. In the meantime, if (good fortune to you!) you give birth, if it is a boy, let it live; if it is a girl, expose it.'
In 374 - after Constantine made Christianity the official religion of the empire - the practice was banned. The Romans may have done much for us - but they left a very dark secret in the Home Counties.


Read more: http://www.dailymail.co.uk/sciencetech/article-2031727/Roman-prostitutes-forced-kill-children-bury-mass-graves-English-brothel.html#ixzz1Wh9Lu8U7

Potato diet for lower blood pressure... and no weight gain




Spuds - the new superfood: The potato can help lower blood pressure without piling on the pounds
Spuds - the new superfood: The potato can help lower blood pressure without piling on the pounds
They have long been maligned as fattening and shunned by those  following the Dukan and other low-carb diets.
But potatoes could be the latest superfood. For eating a portion twice a day can lower blood pressure, researchers say. What is more, it seems there is no weight gain involved.
However, before you get out the roasting tin or rush to the chip shop, read on.
Microwaved spuds, free of butter, oil or ketchup, are best for health, scientists say. Baked potatoes and boiled spuds, including mash, are also acceptable.
In the study, 18 men and women were asked to eat six to eight golf ball-sized potatoes with their lunch and dinner, as part of their normal diet.
Most of those taking part were overweight or obese and on pills to lower blood pressure.
After a month of the ‘tattie treatment’, their blood pressure readings dropped significantly – suggesting the potatoes were powerful enough to take over when the tablets could not do any more.
 


In addition, none of the volunteers put on any weight.
Potatoes are thought to have a satiating effect but it is also likely that those taking part in the study cut back on other foods, the American Chemical Society’s annual conference reported.
Those used in the U.S. agriculture department-funded study were purple and so small that they contained as few as 12 calories each, but the researchers believe that ordinary potatoes should also benefit health.
They should be cooked – ideally in the microwave – with their skins on.
This is because many of the health-boosting, blood pressure-lowering chemicals are in the skin.
The super spud
Microwaving is preferred because, unlike the high temperatures used to fry and roast, it preserves most of the goodness. Researcher Joe Vinson, from Scranton University in Pennsylvania, said: ‘Mention “potato” and people think “fattening, high carbs, empty calories”. 
‘We hope our research helps to remake the potato’s popular nutritional image.’  
Dr Vinson, who likes his potatoes baked and topped with salad cream, added that lowering blood pressure cuts the risk of heart attacks and strokes.
Previous research has shown potatoes contain phyto, or plant, chemicals similar to those found in blood pressure drugs.


Read more: http://www.dailymail.co.uk/health/article-2032413/Potato-diet-lower-blood-pressure--weight-gain.html#ixzz1Wh4AsuzL