In men, testosterone is responsible for the development of typically masculine characteristics during puberty, such as a deeper voice and facial hair. However, throughout adult life, testosterone not only helps maintain your sex drive but also plays a role in keeping your overall physical health on track.

After age 30, a man’s level of testosterone begins to decline with corresponding drops in what you would call “youthfulness”.

According to published guidelines, healthy ranges of testosterone in men can vary dramatically, but strong physical symptoms of low T most likely appear when your blood testosterone level is below 300 (ng/dl).

Symptoms of Low Testosterone in Men

Because testosterone levels decline slowly over years (decades even), physical effects of low testosterone can be overlooked or more likely just attributed to the daily rigors of life such as work-related stress, or simply “burning the candle at both ends”. In reality, many of the signs and symptoms that we attribute to aging, have direct correlations to a decrease in testosterone levels. Even though a man may be most inclined to link a decline in sexual activity with dropping testosterone level, here are some of the very common signs and symptoms of low testosterone:


  • Decrease in energy levels, chronic tiredness
  • Physical strength has decreased, even with continued exercise
  • Feelings of despair or depression for no apparent reason
  • More easily frustrated
  • Inability to get a full night’s sleep, or waking up tired
  • Loss of muscle mass
  • Increase in body fat especially in the midsection
  • Decline in sex drive (libido)
  • Erectile dysfunction


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