Almost Everyone in the World Has Herpes

Most people with herpes don’t know they have it, which is probably how almost two-thirds of the global population ended up with the virus. On Wednesday, the World Health Organization (WHO)announced that, “More than 3.7 billion people under the age of 50, or 67 percent of the population, are infected with herpes simplex virus type 1.”

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Using Genetics to Open the ‘Black Box’ of Sports Performance

In the past couple decades, sports science has made giant strides on every front — conditioning, nutrition, recovery, equipment, surgery, injury prevention. But all those gains come with a big asterisk: a reminder that individual results may vary. Some athletes respond seemingly overnight to high-intensity interval training; some see middling results. Some enjoy amazing recoveries from knee-ligament reconstructions; others never really heal. For athletes who feel like they’re doing everything right, this seeming arbitrariness can be discouraging and infuriating.

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Oxygen Discovery Changes Our Perception of Space

The strange, duck-shaped comet that ESA’s Rosetta spacecraft has been orbiting for more than a year just got a bit stranger: Like plants on Earth, the comet is blowing molecular oxygen, O2, into the space around it. Molecular oxygen is thought to be rare in the cosmos – or at least exceptionally tricky to detect.

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