The Map of Tastes on Your Tongue You Learned at School Is All Wrong
Everybody has seen the tongue map – that little diagram of the tongue with different sections neatly cordoned off for different taste receptors. Sweet in the front, salty and sour on the sides and bitter at the back. It’s possibly the most recognizable symbol in the study of taste, but it’s wrong. In fact, it…
How Aging Affects Athletic Peformance
“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. Above: At 42, Chris Horner became the oldest person to a win a cycling Grand Tour. In this photo Horner climbs during…
Why Don’t Humans Have as Much Hair as Other Primates?
Although there is no definitive account of why we lost our body hair when every other primate is covered with the stuff, there are a handful of compelling theories that may explain our hairless condition. One early explanation for why we, alone, are the only relatively “naked” apes was the aquatic ape hypothesis. First floated…