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'Exhaustion' Can Signify A Lot More Than 'Tired'

Shortly after U.S. Rep. Jesse Jackson Jr. dropped out of sight, his office said he was suffering from exhaustion. Then, his condition was described as a mood disorder. Those medically imprecise terms have a long and varied political history.

Governors Spar Over Medicaid And Health Exchanges

It's no easy trick for the National Governors Association to get Republican and Democratic chief executives in the same room. After the Supreme Court decision on the Affordable Care Act a few weeks ago, it's proving even harder.

Electric Fans May Do More Harm Than Good In A Heat Wave

Researchers say there's no evidence electric fans actually provide relief in a heat wave. So they're calling for more research, even though heat waves are hard to predict and even harder to study once they hit.

Myths And Tips On Keeping Your Cool This Summer

As you sweat during hot-weather exercise, the body's temperature inches up, and heatstroke can result. Douglas Casa, of the Korey Stringer Institute, explains the best way to stay safely hydrated during summer activity--and why too much water can be a bad thing too.

Tumors Evade Treatment With Help From Neighboring Cells

What makes some types of cancer resistant to drugs? Reporting in Nature, researchers write that cancer cells may be dodging treatment with help from seemingly innocent bystanders. Cancer researcher Todd Golub discusses how a tumor's microenvironment may affect its behavior.

Silk Stretches Drugs' Shelf Life To New Lengths

Researchers have found a fridge-free way to store vaccines and antibiotics. Biomedical engineer David Kaplan, senior author of the study in the Proceedings of the National Academy of Sciences, discusses how heat-sensitive drugs wrapped in silk stay effective for months at high temperatures.