. >> chloe is head manager for the boys varsity basketball team at her school and a high achieving girlcout. celina is editor in chief of her school yearbook, and a debater. nevin is also on his school's debate team, and he competes in an academic decathelon. but all through high school, they also have been busy, helping to brighten the lives of people coping with cancer. >> all my other extracurricular activities i do for myself, but volunteering is one of the things i can really do for other people, where i really feel like i'm helping my community and contributing to my society. >> the md anderson cancer center in houston provides volunteer opportunities for hundreds of high school students. >> teens are clinic aid volunteers, gift shop volunteers, they volunteer in our beauty-barbershop, our cybercenter, our patient family center, a variety of over 40 different positions. >> chloe and celina run a service that brings hats to patients who are losing their hair because of cancer treatments. >> hi, we're with volunteer services and we're here to offer you a free hat! >> what makes this

the study involved 11 players from their varsity basketball team. they tried to get 10 hours of sleep a night which turned out to benign to be nine and a half per night but the results were noticeable. they shot free throws better and were faster, so sleep -- >> what? yeah, and i think we should pass that on to the giants who are playing because it is good for all athletes to get a good night's sleep and the giants have a baseball game tonight. right, sal? >> they do and they are wearing these hats. >> cool. >> to honor our veterans, too small for me, yeah, so when you see the game -- i have a big head, you know, when you you see the became beware of that. the beware of that. the best way to get there is public transportation, parking regulations are in effect for san francisco. make sure you read the signs, the freeways look good. let's look at the bay bridge. of course not a regular commute as most people, not everyone but most people have the day off today and if you are driving in the so it bay this would normally be a thick commute but it is li