Testosterone, a naturally produced steroid hormone, that is an essential part of our biochemistry. It helps us to increase lean muscle mass and bone density, and it’s not all about looking good because testosterone is also vital to our health. Low levels, in both men and women, have been known to lead to a greatly increased risk of depression and osteoporosis as well obesity and low sex drives, and some men opt for low t treatment. But it doesn’t end there, men who have testosterone levels below the normal range can have a higher chance of developing heart disease, depression and dementia. Men aren’t the only ones who can suffer though as women have testosterone too, and low levels can cause weight gain and a loss of muscle mass.