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    Slideshow: 10 Effects of Low T

    Drop in Energy

    Fatigue is a common effect of low testosterone. You might feel like you just don't have the energy that you're used to. Or you might be incredibly tired.

    But many other things can sap your energy, too, including normal aging and depression.

    Getting enough sleep may help raise your energy levels. Try to get at least 7 to 8 hours each night.

    See your doctor for more help with unusual fatigue.

    Changes in Sex Life

    A drop in your sex drive can be due to low T. So can erectile dysfunction.

    Low testosterone alone is rarely the only reason for weaker and fewer erections. Other medical problems can be to blame, such as heart disease or diabetes.

    Check with your doctor. If you have low testosterone levels, your sex drive may get better with treatment.

    Fuzzy Thinking

    Low testosterone can hurt your mental focus and memory. You may forget what you planned to do and have trouble concentrating.  This happens more often when testosterone levels are extremely low.

    You can also feel sadness and other symptoms of depression.  To help, take steps to ease stress. Try meditation, yoga, exercise, or massage. T

    Changes in Mood

    Low testosterone can get you down -- a little or to the point of depression.

    Some men really see a change in personality. Nothing seems to make them happy anymore and they don't want to do things they used to enjoy.

    When testosterone levels are back to normal, men often say they feel like themselves again.

    Muscle Changes

    Because testosterone helps build muscle, when it gets low, so does your muscle mass and strength. When you work out you don't see the results that you would normally expect from exercise.

    Regular exercise can help boost your testosterone levels. Be sure to work large groups of muscles when you exercise and do some weight lifting, too.

    More Body Fat

    Not only can you lose muscles with low testosterone, you can also gain fat. If you're not building muscle with the calories you take in and the physical activity you do, then your body turns the calories into fat.

    Eat a healthy diet. When you start to lose weight and extra body fat from dieting, you may lose some muscle. If you are overweight or obese, your body may make more testosterone as you lose weight. This will help you gain lost muscle mass.

    Thinning Body Hair

    Low testosterone can cause you to lose some facial hair, pubic hair, and hair on your arms and lower legs. But it doesn't usually affect the hair on your head.

    But one thing you should know. There's a link between testosterone therapy and male-pattern balding. Your doctor can talk to you about any side effects of testosterone treatment.

    Loss of Bone Mass

    Low testosterone has been linked to osteoporosis, a disease that weakens bones. But there are other causes of osteoporosis too, so check with your doctor.

    To keep your bones healthy, don't smoke, and cut back on alcohol. Also get regular exercise, including weight-bearing exercise.

    Trouble Sleeping

    When your testosterone levels are low, you might have trouble with insomnia and restlessness at night.

    To help get a good night's sleep, have a relaxing bedtime routine. Go to bed and wake up at the same time, even on weekends. Make your bedroom dark, quiet, and comfortable, and only use it for sleep and sex.

    Problems on the Job

    Many of the effects of low testosterone -- focus problems, mood issues, and low energy -- can make it hard to stay on top of your game at work.

    If your work or home life has changed dramatically for the worse, a full medical checkup might help find the cause. A blood test can show whether you have low testosterone levels.

    If you have low T, healthy lifestyle changes are important, along with any testosterone therapy your doctor might suggest.

    Managing Low T

    Reviewed by Stuart Bergman, MD on July 22, 2015

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