In the fight against Alzheimer's, memory loss has kept its place as the frontrunner of early warning signs, but that may no longer hold true.

New survey data analysis finds that people who report even moderate pain are 41 percent more likely to develop an opioid addiction.

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Unwanted microorganisms are a fact of life. Bugs grow everywhere we don't want them, from our showers and sinks to our toilets and toothbrushes. The scummy layers they form, called biofilms, are ugly and disgusting but mostly harmless in these settings. However, when they form on medical devices, such as catheters and implants, they can be life-threatening. A clever new material may prevent that.

Zithromax was everywhere, then it fell out of favor. A new study shows the case against it was overblown. Which is correct?

Much of what we know about early man comes from Gary Larson, the genius behind The Far Side cartoon. For instance, because of him, we have anthropological insights on everything from caveman fashion to the invention of the wheel. He also depicted how, in his mind, caveman researchers discovered fire. But how and when did early man really discover fire?

Personalized medicine is the rage but it's yet to realize much of its potential. That is why a study that was recently reported for ovarian cancer surveillance is exciting.

For fish frying, olive oil really is better. Science says so.

Even at 9 months, girls and boys are drawn to toys long associated with genders.

A series of studies in the past two decades suggest the long-standing worry among women that in vitro fertilization could carry an increased risk for breast cancer has no merit.