. >> reporte theasalifornia is ali brown's preferred place to study. >> i go do schoto school in san monicahe >> reporter: book smart and sun smart. >> it has 50 sp t >> reporte majority of african-american men and women do not use sunscreen. melanoma does occur in s african-americnd when it does, it's far more deadly. stagesagnosed at later when it's less likely to be cure. >> this brown girl wears sunscreen. >> reporter: courtney is a edical assistant near washington, d.c. she says part of the problem is a misconception that people with darker skin don't need sun protection. it is hard because you have years and years of what you don't need. that's not true. we do need >>it. eporter: the need for sun block does not change no matter what your ski s or the looks like. >> whether it' cloudy, isunny, knowing, end of days, youeed to use sunscreen every single eny. >> reporter: pay aon to skin changes no matter where they are on the body. african-americans are likely develop it on soles, hand, feet, under toenails. >> today is the day we'll want to slather on the sunscreen. >>> we'll hav