
Exercise linked to lower risk of Alzheimer's: Study
November 26, 2012 6:27 AM
Research at UCLA shows those who burned the most calories through exercise and activity had five-percent more gray matter in their brains. Norah O'Donnell reports.
Video
5/22: Residents return to tornado-ravaged neighborhoods; Undercover in a Bangladesh clothing factory
1 of 9
Video
Undercover in a Bangladesh clothing factory
2 of 9
Video
Oklahoma family tells amazing story of survival
3 of 9
Video
Survivors pulled from Okla. school hit by tornado
4 of 9
Video
Oklahoma tornado survivor: "Everything is gone"
5 of 9
Video
Okla. tornado survivor finds dog buried alive under rubble
6 of 9
Video
Man killed in brutal London attack
7 of 9
Video
Friend implicates Boston bombing suspect in triple homicide
8 of 9
Video
IRS Manager: "I have not done anything wrong"
9 of 9

November 26, 2012 6:27 AM
Research at UCLA shows those who burned the most calories through exercise and activity had five-percent more gray matter in their brains. Norah O'Donnell reports.
Falcon chicks hatch on George Washington Bridge 1:47 May 22, 2013
NBA star pledges $1M to help tornado recovery 0:24 May 22, 2013
Coach's quick call saves Moore football team 3:15 May 22, 2013
Spirit Airlines CEO on bad ratings, high occupancy 3:48 May 22, 2013
Jodi Arias reveals plans for prison 2:12 May 22, 2013
Spirit Airlines puts low cost over comfort 2:09 May 22, 2013
IRS scandal: IRS division head to plead the fifth 2:57 May 22, 2013