Public health officials have been working hard to account for the dramatic rise in U.S. obesity rates. Many obvious factors, such as poor diet and a sedentary lifestyle, certainly contribute…
For most teenagers in the United States and Canada, fish and fruit are not high on their delicious list. Also, many of them — about 20 percent of those under 18 — cough, wheeze, and suffer from asthma and bronchitis. Researchers at the Harvard School of Public Health (HSPH) have found a connection between these two situations.
Hunter-gatherer instincts set loose in a world of modern food abundance are at the root of today’s obesity crisis, according to a Harvard psychologist.
Which is more likely to push a depressed child to suicide: not taking antidepressant drugs or taking antidepressant drugs? Medical experts have struggled with this question at least since 1990 when Harvard researchers reported that six people developed suicidal feelings soon after taking Prozac (fluoxetine). This was the first of the now widely prescribed serotonin drugs to ease depression. Called selective serotonin reuptake inhibitors, or SSRIs, such medications ease the problems of depression, anxiety, and obsessive-compulsive behavior by decreasing the activity of a brain chemical known to affect moods.
Women’s brains are different from men’s. That’s not news. What is news is that the differences are smaller than most people believe. They are not big enough to say that one sex is smarter or better at math than the other.
A new Joslin Diabetes Center-led study has further illuminated the role of genes in regulating body weight and fat distribution. Because obesity is a major risk factor for type 2…
If a painting’s worth were measured by the money it fetched, van Gogh’s famous rendering of his friend and physician Dr. Gachet would be among the most valuable in all…
Men who drink moderate amounts of red wine are only half as likely to be diagnosed with prostate cancer as those who don’t drink it at all, according to a report in the June issue of Harvard Men’s Health Letter. What’s more, the beverage seems to be especially protective against the most advanced and aggressive cancers, lowering risk by about 60 percent.
Two Harvard Stem Cell Institute (HSCI) researchers and scientists at Whitehead Institute and Japan’s Kyoto University have independently taken major steps toward discovering ways to reprogram cells in order to direct their development – a key goal in developmental biology and regenerative medicine.
Two Harvard Stem Cell Institute (HSCI) researchers and scientists at Whitehead Institute and Japan’s Kyoto University have independently taken major steps toward discovering ways to reprogram cells in order to…
Newly identified inherited variants of a single gene increase breast cancer risk for women of European ancestry approximately 20 percent if they carry one copy of the gene and by 60 percent if they carry two copies. These variants, in the FGFR2 (Fibroblast Growth Factor Receptor 2) gene, were found in more than half of the women studied.
Whether humans possess free will or whether their actions are determined by something outside their conscious control is one of the most persistent problems in philosophy.
The pictures — of children with sunken eyes and shriveled skin; oxen being herded across a river where women clean their clothes and fill their pitchers; an African villager sipping water from a shallow puddle — made the point like no words could at the May 11 Center for International Development symposium “The Impact of the Global Water Crisis on Health and Human Development” at the Harvard School of Public Health (HSPH).
The reports from Dhaka are hopeful. It is 2005, and Dr. Firdausi Qadri and colleagues at the International Center for Diarrheal Disease Research, Bangladesh, are testing a new cholera vaccine…
Some Caribbean lizards’ strong sexual dimorphism allows them to colonize much larger niches and habitats than they might otherwise occupy, allowing males and females to avoid competing with each other for resources and setting the stage for the population as a whole to thrive. The finding, reported this week in the journal Nature, suggests sex differences may have fueled the evolutionary flourishing of the Earth’s wildly diverse fauna in a way not previously appreciated by scientists.
Massachusetts Gov. Deval Patrick Tuesday (May 8) announced a $1 billion biotech initiative to secure Massachusetts its position as a world leader in biotechnology and stem cell science.
A tiny opossum’s genome has shed light on how evolution creates new creatures from old, showing that change primarily comes by finding new ways of turning existing genes on and off.
Realizing a dream articulated in 2003 by renowned biologist E.O. Wilson, Harvard and four partner institutions have launched an ambitious effort to create an Encyclopedia of Life (EOL), an unprecedented project to document online every one of Earth’s 1.8 million known species. For the first time in history, the EOL would grant scientists, students, and others multimedia access to all known living species, even those just discovered.
A widely used diabetes drug dramatically boosted the potency of platinum-based cancer drugs when administered together to a variety of cancer cell lines and to mice with tumors, report scientists from Harvard-affiliated Dana-Farber Cancer Institute.
A tiny opossum’s genome has shed light on how evolution creates new creatures from old, showing that change primarily comes by finding new ways of turning existing genes on and…
Runners who consume too much water or sports drinks during a marathon can develop a life-threatening condition called exercise-associated hyponatremia (EAH). Beyond drinking, however, researchers at Harvard-affiliated McLean Hospital report in the May 2007 issue of the American Journal of Medicine that this complication during endurance exercise is also the result of a hormonal stress response, which decreases urine formation and prevents the excretion of excess water.
Mental health professionals are aware of the importance of understanding the kinds of illnesses — such as depression and post-traumatic stress disorder (PTSD) — that can result from disasters both natural and human-made. But perhaps even more crucial, according to Robert J. Ursano, is that they understand the behaviors associated with such events.
Before fish began to invade land, about 365 million years ago, they had some big problems to solve. They needed to come up with new ways to move, breathe, and eat.
A team of Harvard researchers has used embryonic stem cells, derived from mice carrying a human gene known to cause a form of amyotrophic lateral sclerosis (ALS), to create an in vitro model of the always-fatal neurodegenerative disease.
Hairless, clawless, and largely weaponless, ancient humans used the unlikely combination of sweatiness and relentlessness to gain the upper hand over their faster, stronger, generally more dangerous animal prey, Harvard Anthropology Professor Daniel Lieberman said Thursday (April 12).
Concerns about the high perceived costs of eradicating the relatively low number of polio cases worldwide have led to recent suggestions that it is time to shift from a goal of eradication to control: abandoning eradication and allowing wild poliovirus to continue to circulate, which proponents of control believe can sustain the low number of cases.
The roar of the crowd may subconsciously influence some referees to give an advantage to the home team, according to a study that examines the results of more than 5,000 soccer matches in the English Premier League. The matches were played between 1992 and 2006, and involved 50 different referees, each of whom had officiated at least 25 games within that time period.
Scientists at Dana-Farber Cancer Institute have shown in a laboratory study that revving up a crucial set of muscle genes counteracts the damage caused by a form of muscular dystrophy.
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