A Dose of Tenacity: Eric Heiden's five Olympic gold medals are due to mental toughness, an asset even for med school. Again, Portfolio.com gives us Back to Back videos from athletes turned entrepreneurs revealing the unexpected differences and...

NEW HAVEN, Conn. - A spokeswoman for screen legend Paul Newman says the actor/activist/race car driver has died at age 83. Spokeswoman Marni Tomljanovic says Newman died Friday of cancer. No other details were immediately available. You can read the full.

It’s midnight. You can’t sleep. You’re tossing and turning. The person next to you is just lying there, sleeping like a baby. No, like a brick. Will you ever get to sleep? Welcome to the world of insomnia: Your baseline energy level, due to lack...

Gravity hurts: you can feel it hoisting a loaded backpack (just ask my kids) or pushing a bike up a hill (when you aren't fit enough to actually ride it uphill). But lack of gravity hurts, too: when astronauts return from long-term stints in space,...

Adventure seekers can now leave a digital trail for friends back home to trace via SPOT Satellite Messenger . The GPS tracking device transmits pinpoint locations along with text messages -- emergency or otherwise -- to a website that captures real-time.