Needles that don't cause pain? Learn about micro needles on this Moment of Science.
Learn about the sensitive skin of alligators on this Moment of Science.
And since the cold numbs your nerves at the injury site, you don’t feel much pain as long as you apply ice.
Recent research has shown that caffeine can actually boost a runner’s endurance and thereby improve his time by 10 to 15%. These days research is showing that in moderation caffeine really isn’t so bad for the body.
Can you find your blind spot? And I'm not talking about the one in your rear view mirror.