Yes, adding excessive testosterone to your body can cause hair loss. Also acne, and shrinking testicles .....but they go back to normal size when you stop the juice.
Yes,hair lose is one of the symptoms of using herione.
Using hot appliances and brushing it or combing it too hard (you can lose you hair)
Seek medical help
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Get caught of using steriods.
Yes it can because by colouring your hair you are damaging it, which will make it weaker and therefore easier to lose. If you colour your hair you should condition it with a hair mask at least once a week. (I suggest using Tressemme brand.)
He does not take steroids!
Weight training.
The past tense of "you lose your hair" is "you lost your hair."
Using a hair growth treatment when you don't need it may have you lose even more hair. You should consult a doctor before deciding if you need a hair regrowth treatment.
Are u serious , I know a better question Are you stupid ? No offcourse he didnt sell steriods , but using is a other story xD
*opinion answer* There are several valid reasons to take steriods. Using steriods in competition is cheating and that would make someone a "bad person"