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Dr. Williams on Madison Television Newscast

Daniel Williams, M.D. was featured on the Top 5 at 5 on NBC Channel 15 on March 3, 2009 speaking about male fertility and age.

Although it is widely known that a woman’s fertility potential declines with age, men may have biological clocks too. “While not to the same degree as ovarian function, testicular production of both sperm and testosterone decreases as men age,” says Williams.

Additionally, exposure to environmental toxins such as heat, radiation, and chemicals increases with time, and these exposures can accumulate and impair sperm’s ability to fertilize an egg. Copyright © 2017 The Board of Regents of the University of Wisconsin System