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Fasting every other day is no better for losing weight or keeping it off than restricting calories every day, a study suggests. And it's yet another example of how hard it is to study fasting.

More Americans support than oppose recent protests after the shooting in Kenosha, Wis., according to an Ipsos poll. But sharp divisions are emerging along racial and political party lines.

Increasingly, high quality oils have a harvest date stamped on the label. Why? Olive oil goes rancid and loses many of the beneficial compounds in just a few months. If the oil stings the back of your throat, the beneficial compounds are there, experts say.

On issues such as foreign policy, the economy and NSA snooping, people tend to back policies based on where their party stands, rather than holding fast to deep-seated beliefs. When party control switches, so do their positions.

A new study is focusing on what works best to prepare kids for school. Math may be what really counts, say researchers; one of them describes it as "a lever to improve outcomes for kids longer term."

Each year more than 12 million Americans go to the doctor because of severe, chronic headaches. Many are sent for expensive tests. Researchers say all this testing isn't doing people much good.

Royalty and licensing payments accounted for almost a third of the amount paid to doctors by drug and device companies. The total exceeded the amount spent on speeches, consulting and meals.

Researchers find that high-risk heart patients in teaching hospitals fared better when their cardiologists were away at national conventions instead of working at their usual jobs. Why?

E. T. Mensah, who died 20 years ago, played highlife, an offshoot of jazz that for years was the most popular style of music in southern Africa. Milo Miles reviews a new anthology of Mensah's music.

NPR's Robert Siegel talks to Rob Darling, a former White House physician, about how much voters have a right to know about the medical histories of presidential candidates.