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Erick Aleman, a junior at Rio Mesa High School, was born without his left foot and lower leg due to Hanhart Syndrome.

Insignificant to be concerned about high heels when you're an amputee. to me, it was really important. it was part of who i was, part of being a woman and it was something that i didn't want to have to give up. hopefully we'll be making it happen for a lot of other people as well. it's going to open up a whole new life for me, i think. >> it means a lot to me to help another person the way the i was help, also to make people aware of the cost of prosthetic devices and hopefully make some changes. >> a study by johns hopkins found the total lifetime cost of a traumatic amputation is more than h...

Was 11 above the knee, and yeah, that's how it started really. >> and you started running at age 32. >> yeah, i actually from england originally and moved to the use, and first running-- 32 when i first got my running leg. >> sarah, you came over and jumped in and said this is the first event of a bit of a series you're doing here. >> yeah, calling it the triple crown of the trifecta, new york city tri today and coming back for the new york city ironman and capping it off with the new york city marathon in november. >> rick: that sounds nuts in any circumstance. and your circumstance is differ...

Shepherd in the green t-shirt, running for the first time with her new prosthetic running leg. she's from vietnam, she lost her legs when she was an infant after her birth parents strapped bombs to themselves with haven in their arms. a horrific incident that unbelievably has not quelched the spirit of this little girl. >> i don't care if i have prosthetics or no. my mom taught me this thing. it really doesn't matter if you have fake legs or real. everybody will fall down. but getting up is the big deal. martha: wow. she is incredible. an organization that is called challenged athletes donated...

repeated blows to the head, the kind that you get on a football field can have lasting reprecussions. especially for young people. some states are writing new laws. in fact, one just took effect this month here in california. any player on a high school or middle school team who gets a concussion must be cleared by a trainer or doctor before going back on the field. even then, though, the risk is hard to gauge. you can't really see damage to the brain unless you actually look inside. of course, by then it's too late. >> reporter: football is a violent game, full of big hits. what are...