Testosterone is a hormone that affects a few different things, like:
Your body hair
How much muscle and bone you have
How the penis grows and works
Your testosterone levels go up and down throughout the day. They’re usually higher in the morning and then drop slowly during the day.
Starting in their late 40s and early 50s, some men get symptoms like depression and low sex drive. These symptoms can be caused by low testosterone levels.
Sometimes this drop in testosterone is known as the ‘male menopause’. This name is slightly misleading because it sounds like there’s a sudden drop in testosterone levels, like the one that happens during women’s menopause, but this isn’t the case.
If you do have low testosterone (hypogonadism) you might need hormone replacement therapy to help you control your symptoms, which the NHS can provide.