Men with high blood pressure may also have a low testosterone level.

In young men with low testosterone levels, the problem is clear.

What time of day is best to check my testosterone level?

Another difference found is that men have up to 20 times higher levels of testosterone than women.

Men lose about 1 percent per year of their testosterone levels after age 40.

This may be due to the level of testosterone in her body.

Even so, most older men have testosterone levels in the low normal range.

The levels of testosterone found in her system were three times the accepted level.

He saw his doctor, who found Tom's testosterone level to be extremely low.

But research in humans hasn't found any effect on testosterone levels.