To some extent, but this does not mean that it is impossible to treat. Environment, stress and even your personality can play a role. Genetics are also said to play a part in baldness. However, Hair Fantastiques success rate with thinning hair and male patter baldness is very high. Premature baldness can be caused by friction alopecia.
Vigorous towel drying can literally 'rub away' hair.
Stress during school senior years when peer pressure is high and the competition is fierce can contribute to this. Bad diet and sleep depravation also play a large. The need to push oneself to the limit can also contribute. One needs to be conscious of what is occurring in the nervous system and to take steps to rectify the situation. Vitamin B supplementation and less pressure can help, as well as more sleep.