gymnasts do a lot of cardio, which I heard reduces testosterone levels. i don't know why cardio would do that. But i read that people were doing hand stands back in the 80's for hair growth and it did not work, though I don't know if any studies were done. at least no 1000 person studies. Perhaps 6 minutes out of the day is not enough. strong shoulders and balance are good though. when people discovered that minoxidil causes hair growth, they tried other drugs that dialate blood vessels and give blood flow to the scalp. Those did not work, which is why they concluded that minoxidil must work in other ways, and they've come up with many since then. I doubt brushing your hair stimulates as much blood flow as minoxidil does. It never stopped me from loosing my hair, and I can vouched that I combed it a lot in junior high and high school and years afterwards while trying futily to do cover ups. 15% of normal hairs, and maybe 25% of balding men's hairs are in telogen, which is the state in the hair cycle where the bulb has shrunken and the hair is waiting to fall out and anoter will replace it. Those percentages don't sound right since telogen lasts 3 months and the hair cycle is 2-6 years, but typically 3. Anyway, as long as the telegen hairs are sitting there, they give a good cover up. When you brush them, or apply minoxidil sometimes, they come out easily, since the bulb is small. Some people think this is loosing hair, but no extra hairs are dying. I'd leave them in, not brush them out.
