Lack of Sleep Can Kill Testosterone Levels

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Lack of Quality Sleep May Kill Your Testosterone Levels!

Testosterone levels rise as we sleep and decrease during waking hours[1].  In order to maximize your natural testosterone production, you need to get adequate Z’s.

A recent clinical study of healthy men[2] showed just one week of decreased sleep caused a drastic reduction in the subjects’ testosterone levels. Every man in the study experienced a significant decrease in his testosterone, ranging from ten percent to as much as fifteen percent. Keeping everything else in their lives the same, that’s the effect which resulted just from lack of sleep. This study discovered lack of sleep can have the same devastating effects on testosterone levels as aging 10 – 15 years!

It will probably come as no surprise to you that testosterone levels usually dip the lowest in the afternoon and evening hours since you are most likely to feel an energy crash around the same time.

Unfortunately, that’s probably when you probably want your energy and libido to be geared up! If you are already running at a deficit due to lack of sleep, the testosterone crash is going to hit you that much harder.

  1. Andersen, M.L., et al., The association of testosterone, sleep, and sexual function in men and women. Brain Res, 2011. 1416: p. 80-104.
  2. Center, U.o.C.M. Sleep loss dramatically lowers testosterone in healthy young men. 2011; Available from:


The views expressed in this blog are personal opinions and they are not intended to be, or replace, medical advice by a healthcare professional. While we have put in an extraordinary amount of time, energy and effort to give you the best information possible, based on the best research we could find, different people may have different views of the research discussed. You should always conduct your own research and seek advice from a healthcare professional before taking or discontinuing any of the consumables mentioned.

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