Health
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How HIV research has reshaped modern medicine
Decades of scientific work turned the tide on a fatal disease and yielded insights into immunity, vaccines, and more
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Use of new diet drugs likely to mushroom
Study estimates over half of Americans eligible to take them based on conditions, underscoring need to ensure equity of access.
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Rapid relief for the severely depressed? There’s a catch.
Ketamine carries risks, say researchers. Yet for some patients, it’s ‘the only thing that works.’
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New frontiers in cancer care
In podcast, experts discuss breakthroughs in treatment, from genomic sequencing to AI, and how close we are to personalized vaccines
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Too much sitting hurts the heart
Even with exercise, sedentary behavior can increase risk of heart failure by up to 60%, according to study
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Is cheese bad for you?
Nutritionist explains why you’re probably eating way too much
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Dopamine may play dual role in Parkinson’s disease
According to the Parkinson’s Disease Foundation, “Parkinson’s disease (PD) is a disorder of the central nervous system that affects between one and one-and-a-half million Americans. Because it is not contagious…
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“Heart of glass” may be more than just a metaphor
Jeffrey Fredberg is a professor of bioengineering and physiology at the Harvard School of Public Health. His primary research interest is asthma. Fredberg was intrigued by the plasticity of the…
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WHO report reviews world mental health care
Since the mid-1970s, World Health Organization policies have encouraged integrating mental health services into primary care settings. But no one knows what, if anything, might be working to help those…
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How does the brain reinvent itself?
In order for us to use our minds for memory, for learning, and so forth, our brains must continually reinvent themselves. How do they do it? A Harvard Medical School…
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Anthrax toxin receptor discovered
The first point of contact between anthrax toxin that invades the body and the cells that the toxin will eventually destroy is a protein, known as a “docking” protein or…
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Cognition unaffected by marijuana use
Harrison Pope, a Harvard professor of psychiatry, and his colleagues at McLean Hospital, a Harvard-affiliated psychiatric facility in Belmont, Mass., investigated the long-term cognitive effects of smoking marijuana. They recruited…
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Cardiovascular risks seen from marathon running
Researchers analyzed the blood of marathon runners less than 24 hours after they had finished a race. They found abnormally high levels of inflammatory and clotting factors of the kind…
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Anthrax immunity gene found in mice
Anthrax is an often fatal disease that is caused by a bacterium. It has been considered a prime biological weapon in the arsenal of terrorists since attacks in the United…
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A strategy to neutralize anthrax toxin in the body
A Harvard Medical School research team has developed a strategy to neutralize anthrax toxin in the body. So far they have tried the treatment in rats. Normally, rats die within…
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Researchers identify genes that trigger depression
A substance known as CREB controls gene expression in the brain. It also appears to be active in mood disorders. A group of Harvard researchers at McLean Hospital in Belmont,…
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Study shows strong public interest in genetic testing for Alzheimer’s disease
A genetic test to determine a person’s chance of getting Alzheimer’s disease is still hypothetical. But scientists are getting closer and closer to being able to determine who is likely…
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One-tenth of medical residents feel unprepared
Findings from a study suggest that gaps exist in the preparedness of physicians to manage the full range of patients, procedures and problems they may encounter. A surprising one in…
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Sorting good eggs from bad ones
An oocyte is an immature egg cell in the ovaries. Before a woman is born, her ovaries will contain about five million eggs. At birth, about three million of those…
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Cell death in eggs traced to smoking
A woman is born with just so many egg cells, called oocytes. When she begins ovulating, she has about 400. Even though that may seem like a lot, considering the…
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Common aspirin reveals mechanism of insulin resistance
In 1876, a German professor described a treatment that led to rapid improvement in two men who were suffering from what doctors now recognize as classic type 2 diabetes. In…
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Resistance to antibodies is reversed
It’s a frightening — and increasingly common — problem. A patient seeks treatment for a particular ailment in a hospital and develops an entirely different disease: a bacterial infection that…
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Researchers discover new type of cancer
A team led by a Harvard researcher has identified a new type of cancer that primarily affects young girls. Sara Vargas, an instructor in pathology at Harvard Medical School and…
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Harvard scientists identify chromosome location of genes associated with long life
Scientists have long thought of aging as a complex process affected by perhaps a thousand genes. So a recent discovery by Harvard scientists that a gene or genes located on…
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Nutrition book author Willett rebuilds USDA food pyramid
For more than 20 years researchers at Harvard and elsewhere have been looking at the long-term health effects of eating certain types of foods. These researchers now have a good…
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Drug hits new molecular target in mice
When doctors diagnose and plan treatment for breast cancers they look for various indicators of how aggressive they are and what treatments will work best. Two-thirds of breast tumors are…
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Study shows obesity can increase risk of pancreatic cancer
Each year almost 30,000 people in the United States are diagnosed with pancreatic cancer. About the same number of people are killed by it. Pancreatic cancer is the fifth-leading cause…
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Snack foods may increase risk of age-related sight loss
Macular degeneration results from the malfunctioning or loss of function of photo-sensitive cells in the retina. According to the Macular Degeneration Foundation, more than 13 million people in the United…
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Amniotic cells may be source of new tissue
Babies born with congenital defects often require surgery. Surgeons face a problem, however — in adults, tissue for repair is borrowed from other areas of the body, but babies don’t…
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Inflammatory villain turns do-gooder
Many drugs try to tame inflammation by inhibiting molecular events occurring at the beginning of the body’s own immune response. But that may thwart the body’s attempt to heal. A…
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Walking rhythm offers gait-way to reduce falls
Over the past 10 years, Jeffrey Hausdorff has studied thousands of steps from hundreds of feet. The Harvard Medical School assistant professor says that complex patterns hidden in an ordinary…
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Will vaccine defense help polish off tooth decay?
The key to preventing cavities in teeth lies in controlling an acid-secreting bacterium known as Streptococcus mutans that lives in the mouth. Researchers at the Harvard School of Dental Medicine…
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Diet and exercise dramatically delay type 2 diabetes
Diabetes afflicts more than 16 million people in the United States; type 2 diabetes accounts for up to 95 percent of all diabetes cases. New findings from the Diabetes Prevention…
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Are you an ‘early bird’ or a ‘night owl’?
Harvard researchers working at Brigham and Women’s Hospital have found that whether someone is a morning person or an evening person depends on a basic aspect of the circadian timing…
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High levels of depression, post-traumatic stress disorder remain in Bosnian refugees
In 1996, Harvard Medical School researchers began following the mental health impact of the Bosnian war on individuals in a refugee camp in Croatia. Most of the refugees have now…
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Deadliest form of malaria is younger than previously believed
Malaria kills more people than any other communicable disease except for tuberculosis. It is the world’s most serious parasitic tropical disease, resulting in 1 million to 3 million deaths annually.…