Natasha Calzatti for The New York Times
John Shahani, the ayurvedic practitioner at Exhale Spa in Santa Monica, California, said he was not worried about the safety of his products.
By ABBY ELLIN
The health industry has questions about metals like lead, mercury or arsenic being found in ayurvedic supplements.
"Teething problems" continue and helium spill slows use of machine outside Geneva to begin banging protons together.
By JULIA MOSKIN
Major food companies are competing for health-conscious consumers by plugging one food into another and claiming the health benefits of both.
By TARA PARKER-POPE
Many dieters are shunning deprivation diets and instead focusing on adding seasonal vegetables, nuts, berries and other healthful foods to their plates.
By CLAUDIA DREIFUS
A neuroscientist and psychiatrist at the University of Iowa, Dr. Nancy C. Andreasen answers questions about her use of imaging technology for learning about the physiology of the brain.
By ANDREW C. REVKIN
Many Arctic specialists say natural variations in Arctic winds and cloud cover probably had a role in shaping the particularly large ice losses in the past two summers.
By KATE MURPHY
In trying to discover the patterns and causes of referred pain, researchers say they are gaining a greater understanding of how the nervous system works and how its signals can go awry.
MIND
By RONALD PIES, M.D
The vexing issue of when bereavement or sadness becomes a disorder, and how it should be treated, requires more study.
By JANE E. BRODY
Barring any complications, nearly all people who undergo weight-loss surgery lose a lot of weight, but without a strong dedication to weight maintenance, many of them years later may start to regain what they lost.
By NATALIE ANGIER
New research suggests that math teachers might do well to emphasize the power of the ballpark figure, to focus less on arithmetic precision and more on general reckoning.
By BENEDICT CAREY
Social iciness feels so cold to those on the receiving end that they will crave a hot drink, a new study has found.
AP
Preliminary study, however, suggests that BPA may be linked to heart disease and diabetes.
AP
Federal regulators defended BPA even as the first major study of health effects in people linked it with possible risks for heart disease and diabetes.
By WILLIAM J. BROAD
Both presidential candidates have now issued answers to a series of questions about science policy, including ones on climate change and stem cells.
By FELICITY BARRINGER AND KATE GALBRAITH
Ten states are about to undertake the nation's most serious effort yet to tackle climate change, but there are worries that it may fail to reduce pollution.
By ANTHONY DEPALMA
Two sets of data, meticulously collected in the same area for more than a century, are beginning to offer up intriguing indicators about climate change.
By JANE MARGOLIES
For most people, family vacations amount to almost a right. But for those grappling with autism, travel is a trickier proposition. Still, there are families who are determined to hit the road.
By JENNIFER EGAN
What does it mean to be a manic-depressive child?
AP
New software has been developed that promises faster matches and — taking a page from human dating sites — details on animals' personalities to ease what can be a testy process.
By ANAND GIRIDHARADAS
India has become the first country to convict someone of a crime relying on evidence from a controversial brain scan test that produces images of the human mind in action.
By BENEDICT CAREY
Medicines most often prescribed for schizophrenia in youth are no more effective than older, cheaper drugs and are more likely to cause some harmful side effects, a study has found.
OBSERVATORY
By HENRY FOUNTAIN
A new study suggests that dinosaurs ruled the roost for some 135 million years not so much because they were superior to the competition, but because they were lucky.
OBSERVATORY
By HENRY FOUNTAIN
Tardigrades, creatures commonly called water bears, can survive in space, researchers have discovered.
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Israel is at the forefront of desert farming, but even the world's most high-tech farms can't control the weat...
The Chaitén volcano in Chile continues to threaten to coat the formerly picturesque town with volcanic ash.
Scientists from the Atlantis Marine World aquarium in Riverhead, New York, collect tropical species along the ...
A survey by the Wildlife Conservation Society in the Congo Republic has discovered a large population of Weste...
John Schwartz of the New York Times tests a jetpack with the help of its inventor, Glenn Martin, and Ray Thoms...
The call of the New Zealand Blue Whale in 1964 and 1997, played at three times normal speed. (Courtesy Mark Mc...
A growing chorus of discontent suggests that the once-revered doctor-patient relationship is on the rocks.
An example of the images generated by CTA. Narrated by Dr. Harvey Hecht of The Lenox Hill Heart and Vascular I...
Two versions of the same scene used in a scientific study of sarcasm. (Courtesy of Pearson Assessment)
A symbol of health and longevity, the giant Yangtze soft-shell turtle is on the verge of extinction.
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