Hair and Weather Temperature

Hello Doctor.

1. Do you think that taking propecia prior to exercise could increase your testosterone levels better than in the morning?
2. I usually go to ski in summer in a indoor installations at 0 degrees C and notice a small improvement in my hair texture comparing to the external temperature at 40 degrees C here in Spain. Is that possible or do cold and hot temperatures have no effect in hair?

Thank you very much

1. I generally tell my patients that it is best to take finasteride in the morning when normal testosterone levels are highest. It makes the most sense to me. I would also doubt that exercising and the drug have any cyclical impact on testosterone.
2. We can logically believe that if hair is a good insulator, it should get thicker when the seasons change, much as animals do with thicker coats of fur in winter. But humans have asychronous hair cycling, which means that we do not shed (thin) at a particular time of the year and grow hair stronger at other times.