Science Now

Science Now Discoveries from the world of science and medicine
Forget concussions. The real risk of CTE comes from repeated hits to the head, study shows

For more than a decade, researchers trying to make sense of the mysterious degenerative brain disease afflicting football players and other contact-sport athletes have focused on the threat posed by concussions. But new research suggests that attention was misguided.

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2017 was one of the three hottest years on record, NASA and NOAA scientists say

Even without the help of El Niño, 2017 was a top-three scorcher for planet Earth.

Global temperatures last year were the third-highest since scientists began keeping records in 1880, according to data from the National Oceanic and Atmospheric Administration. Measurements from NASA placed it even higher, coming in second over the last 138 years.

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This new blood test can detect early signs of 8 kinds of cancer

Scientists have developed a noninvasive blood test that can detect signs of eight types of cancer long before any symptoms of the disease arise.

The test, which can also help doctors determine where in a person’s body the cancer is located, is called CancerSEEK. Its genesis is described in a paper published Thursday in the journal Science.

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British government targets a modern public health scourge: Loneliness

The country that put the starch in “stiff upper lip” has made companionship, conversation and human contact a national priority.

On Wednesday, British Prime Minister Theresa May announced the creation of a new ministerial portfolio in her Cabinet: combating loneliness.

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To reduce the risk of opioid addiction, study suggests higher doses but fewer refills

Health experts have an intriguing suggestion for reducing opioid overdoses and deaths — asking doctors to prescribe bigger doses of the powerful painkillers.

It may sound counterintuitive, but providing more pain relief to patients right away might allow them to stop taking the pills sooner.

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When it comes to treating obesity, is fitness more important than fatness?

After nearly four decades of rising body weights in the United States and across the world, medical experts are still casting about for the best way to treat obesity and the diseases that come with it.

The answer may depend on which contributes more importantly to ill health: not enough fitness, or too much fatness?

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