Humans
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ArchaeologyNeandertals used tools with versatility
Microscopic data from artifacts found at two Ukrainian sites indicate that Neandertals used stone tools in flexible ways that allowed them to maintain a broad diet for nearly 50,000 years.
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Health & Medicine
Heard about Choline?
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Health & Medicine
Two drugs may enhance recovery from stroke
Two drugs, levodopa and dextroamphetamine, may help stroke patients to recover the ability to move and speak.
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Anthropology
Neandertals show ancient signs of caring
A partial jaw unearthed in France indicates that Neandertals extensively cared for sick and infirm comrades beginning nearly 200,000 years ago.
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Health & Medicine
Painkillers may damage hearts
A retrospective study suggests that commonly used painkillers called COX-2 inhibitors may slightly increase a person's risk of having a heart attack.
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Health & Medicine
Placebos are dead, long live placebos
A study provides new evidence for the placebo effect and suggests a mechanism through which placebos might benefit patients with Parkinson's disease.
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Health & Medicine
Study challenges surgery for lung disease
Patients with the most severe emphysema shouldn't undergo major surgery that removes part of their damaged lungs.
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Health & Medicine
Walking and eating for better health
A low-fat diet and regular exercise can ward off diabetes in people at high risk of developing the disease.
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Health & Medicine
Gene implicated in deadly influenza
A strain of influenza virus that struck in Hong Kong in 1997 got some of its lethality from a mutation in the gene encoding an enzyme called PB2.
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Health & Medicine
Arteries may be vulnerable to HIV attack
HIV may directly interact with cells in arteries, predisposing people to heart attacks.
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Health & Medicine
Immunity’s Eyes
Proteins called toll-like receptors allow human immune cells to detect microbes.
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Health & Medicine
Milk seems to guard against breast cancer
Norwegian scientists have linked high milk consumption to low incidence of breast cancer.