i'm bella shaw. for ten years i was a prime-time news anchor for cnn. i used to call, a steel-trap brain, and then several years ago, little things began to change. i couldn't remember names and facts as well. i'd walk into a room and forget why i went in there. it was like i was in a mental fog. dr. laux, i'm in my 50s, and frankly, i'm too young for this. and it's not a time to panic, and you and your friends are not alone. 140 million americans are dealing, right now, with age-related memory loss that's normal. and everyone's gonna get it. we're all in the same boat. oh yeah, nobody gets outta this one. take a look at this graph. studies show that the human brain starts a gradual decline by age 40. and by age 50, we've lost 1/2 of our short term memory. and it gets worse from there. (bella) you know, it's interesting, because you can see what's going on on the outside of your body, in terms of aging. the gray hairs, the sagging skin. but we don't see what's going on with the brain. easy on the outside, it's a mystery on the inside. but you know what,