If My Brother Is Balding, Will I Go Bald?

So Im 25 and I am not losing my hair (yet) but my dad does not have much hair left and so do all of his brothers. On my mothers side, 3 out of 4 of her brothers have that same problem. My brother is one year older than me and has already been losing his hair for a few years. Does all of this mean I will lose my hair sooner than later..if one brother is losing his hair, what are the chances of of the other not losing his. Also, I was wondering if men that have more body hair(chest+legs..) than the average guy has necessarly more testosterone in his body than average. I have a hairy chest and hairy leg but my beard is scarce(patchy) and it will not grow over 1.5cm, does that say anything about my testerone level or is it just random gene stuff. Are hairy men more likely to lose their hair. Also, is having fine/thin hair(not thinning) linked to more fragile roots and hair loss. Thanks you for your hepl in answering these questions, I have searched everywhere for answers and the few studies conducted on these subject that i found did not were not very clear. Thanks again

Head hair loss does not follow body or beard hair genetics. Also, just because there are other balding men in the family line, you might just miss it. At age 25, if you do not have any hair miniaturization on your head, it will be likely that you will not follow your family pattern.