This guy went from having a full head of hair in 1998 to losing all his hair by 2007? Haha steroid use for sure.
To play Devils Advocate here...
This may not be the result of steroid use. Personally, I feel that guy is loaded to the hilt on gear. NATURAL NO WAY!!!
Took me a little over three years to lose my hair to the point it was really noticeable to the public. After that is when I started getting my hair cut shorter and shorter.
A friend of mine, lost his hair in a matter of months. He was 24. One day he looked in the mirror and noticed his hair was thin, as well as the shower drain was getting a bit clogged. Then 3 months latter he had less hair than Dr. Phil.
People lose their hair at different rates, different ages, and for different reasons. I'm the only one in my family-on both sides- that is bald. I tend to stress a lot and that's what many say is huge cause for baldness. My grandfather is thinning, but has more hair at 80 than I do a third of his age.