How much of an effect can steroids have on testosterone levels in men?

The National Institutes of Health says that men’s testosterone levels can drop from 5 to 2.5 percent when they take steroids, and this drop in testosterone can cause problems with other important parts of their health.

So the NIH says it will be looking at ways to lower testosterone levels, and the answer is a lot.

The NIH says that its new plan, called the Clinical Pharmacology Trial Design (CPDD) is a way for researchers to try to reduce the effect of testosterone on their patients’ health.

The study is being run at two different sites.

At one, researchers will be measuring how testosterone changes in men who have had testosterone replacement therapy for about a year, and then at the other, they’ll be testing whether the effect is due to an increase in testosterone.

The NIH has also been working on a new study called the TRPAGE study, and it will also test whether an increase of testosterone could cause the loss of muscle mass.

In other words, this is just the latest research into the effect that testosterone can have on health.

It seems likely that testosterone levels will increase in men after testosterone replacement treatments, and there is no evidence that they will decrease after the treatments end.

This is something we’re going to have to see as more testosterone is taken, because it’s a long-term thing, so we need to keep track of how testosterone levels change.

But if you want to get a sense of how much testosterone is in a man, this new study will help us better understand that.