Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Men's Health

Font Size

Low Testosterone and the Brain

WebMD Health News

April 17, 2002 -- A healthy dose of testosterone may help some men when it comes to at least two medical conditions. New research suggests the male hormone may help men reduce their risk of stroke as well as improve symptoms of Parkinson's disease.

Two studies on the effects of testosterone were presented at the annual meeting of the American Academy of Neurology.

Study author Monika Hollander, MD, of the Erasmus Medical Center in the Netherlands, and colleagues found men who had low testosterone levels had a higher risk of suffering a stroke than those with normal or high testosterone levels. But testosterone only had a protective effect on nonsmokers. Smokers with higher testosterone levels did not have a lower risk or stroke.

More research is needed to understand how smoking and hormones interact to affect heart health and stroke risk.

A second, smaller study presented at the meeting suggests testosterone treatment can alleviate certain symptoms of Parkinson's disease in men who have low testosterone levels.

When the five patients studied received testosterone replacement therapy, researchers found symptoms such as fatigue, depression, anxiety, and sexual function improved greatly.

Testosterone deficiency affects about 20% to 25% of males over age 60 in the general population, and it turns out this deficiency may account for some of the symptoms seen in Parkinson's that aren't muscle related, says study author Mahlon DeLong, MD, of Emory University, in a news release.

Although more research in a larger number of patients is needed, researchers say testosterone treatment may be a valuable alternative to other medications, such as antidepressants, that don't tend to work well in some Parkinson's patients with low testosterone levels.

Today on WebMD

man coughing
Men shouldn’t ignore.
man swinging in hammock
And how to get out it.
shaving tools
On your shaving skills.
muscular man flexing
Four facts that matter.
Food Men 10 Foods Boost Male Health
Thoughtful man sitting on bed
Man taking blood pressure
doctor holding syringe
Condom Quiz
man running
older couple in bed