DENVER -- When a man tends to feel crankier than usual, has low energy and a sluggish sex drive -- it can a sign of low testosterone levels.
It usually hits between the ages of 40 and 50. Doctors say a man's partner is usually the first one to notice a change in their mate's behavior.
Current remedies include hormonal treatments that can raise the level of testosterone.
But, doctors warn that hormone therapy isn't the right answer for every man.
Recent studies have linked testosterone therapy to an increase in heart attack in older men.
There is a debate over whether this natural phase of life, often referred to as "male menopause" should be treated at all.
Some experts insist that if a treatment is available that can restore a man's quality of life, then it should be administered.
To be safe, experts say any man who notices a change in his energy level, experiences an unusual amount of depression, notices weight gain or has a loss of interest in sex should seek medical attention before taking any type of testosterone.
Gels are available with a prescription, but many products are offered without a prescription online.
Doctors advise against using drugs that aren't approved after serious consideration of the patient's health history.