How to increase testosterone

[Toddler]

As i understand, low testosterone is one of the major cause which leads to ED and premature ejaculation. Users or experts can add other common cause as well would be appreciated.

1. How to increase testosterone naturally and through medication?

2. Will frequent intake of sildenafil and tadalafil once per day wound cause any side affects in future?

[Goldfish_]

Low testosterone is very unusual at your age. It does not cause premature ejaculation.

Most erectile dysfunction at your age is psychological as is premature ejaculation

There are no known long term effects of sildenafil, tadalafil

[Palioly]

Leave alone if you have any prostate problems.