Pam Riehl Szakal and Sue Segel trek through the sand dunes during the Stark Raving Mad adventure race. Related Links United States Adventure Racing Association If you're looking for an endurance race to compete in, there are plenty of choices out the...
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Tricky cyclists in the Tour de France sometimes cheat by upping their red blood cell count for those tough stretches through the Alps. But researchers at Calif...
