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The conventional wisdom is that city life makes you fat and rural life keeps you trim. A new study looks at the numbers to see if that holds true.

Enhancing a research monkey's life by housing it with a pal often doesn't hurt the study, says a researcher who's done it. In her own experience, she says, "it actually helped to improve the science."

Gun advocates often claim that gun owners make the country safer, because responsible gun owners can stop criminals from committing gun violence. But science reporter Melinda Wenner Moyer looked into what decades of gun research has shown about gun violence and the answer is the exact opposite.

After years of budget and political pressure, some climate scientists are changing the way they describe their research, and avoiding the term "climate change."

Saudi Arabia is building a small civilian nuclear reactor, the nation's first. Nuclear power is an important part of its energy plans. Arms control experts ask if its intention is entirely peaceful.

California schools are adopting a civics education model that reaches beyond the branches of government to tackle real-life problems and build a more civil future.

Older adults are dying from falls at a higher rate today than 20 years ago. But you can take simple steps to improve balance, vision and alertness — and keep from falling.

One in five Americans have some experience with mental illness every year — and these three new memoirs dig into that experience, whether it's the author's own illness or that of a loved one.

One in five Americans have some experience with mental illness every year — and these three new memoirs dig into that experience, whether it's the author's own illness or that of a loved one.

A new book explores how overhunting and habitat destruction have left us with only a fraction of the foods that existed a century ago, and the changes that are needed to preserve our culinary variety.