Testosterone levels can absolutely play a role in causing premature ejaculation as lower levels of testosterone lead to erectile dysfunction which can lead to premature ejaculation. The levels of testosterone being produced in your body will gradually decrease with age, making erectile dysfunction and premature ejaculation much more common for the older generations. However, low testosterone levels do not need to be accepted as a natural component of aging as there are many safe and effective treatments available to increase testosterone levels and manage the proper balance of hormones required for proper sexual functioning.