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Health – Articles, Analysis, Opinion

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At 42, Chris Horner became the older person to a win a cycling Grand Tour. In this photo Horner climbs during the 186km 18th stage of La Vuelta, Tour of Spain on September 12 2013. Joseba Etxaburu/Reuters

How does aging affect athletic performance?

“I’m old” is the common refrain for why we get worse at athletics as we age. But here’s what’s really happening in the body through the years to make world-class performance less possible.
International Agency for Research on Cancer has classified UV-emitting tanning devices as a Group I carcinogen – the most dangerous cancer-causing substances. Tanning bed via www.shutterstock.com.

Think indoor tanning is a safer alternative to sitting in the sun? Think again

Researchers have estimated that 8% of the five million cases of skin cancer diagnosed each year in the US can be attributed to indoor tanning.
Exercise Desert Rock I Buster Jangle Dog. By Federal Government of the United States [Public domain], via Wikimedia Commons

How national security gave birth to bioethics

On Human Experiments: what lies behind some of the most shocking human experiments in recent history? Here’s a clue: most of it took place during wartime or when war seemed like a real threat.