Why Scratching an Itch Really Does Make You Itch More00:22
Researchers at the Washington University School of Medicine say the minor pain of scratching an itch produces serotonin, the "pleasure" hormone.
Demolition of San Francisco's Candlestick Park Begins00:33
First Black PGA Golfer Charlie Sifford Dies at 9200:29
Why Less May Be More When It Comes To Jogging00:35
This is How Much Sleep You Should Be Getting00:22
Hull of Confederate Submarine H.L. Hunley Found 150 Years Later00:30
Wounded Warriors Face Off Against NFL Hall-of-Famers00:38