A man’s penis changes with age

Do moderate exercise several times a week to maintain the tone of the pelvic floor muscles. Jogging or brisk walking will do the trick.
Kegel exercises will help.
Take zinc and selenium.
Limit alcohol consumption. Alcohol increases the conversion of testosterone to estrogen and increases inflammation in the area.
Ejaculate several times a week to flush out the area.

Erectile dysfunction (ED)

ED develops in 5 percent of men at age 40, and up to 15 percent at age 70. It can be the result of a variety of intertwined causes:

Biology -– illness, medications, poor health habits of the male partner
Psychological -– anxiety, depression, stress in either partner
Relationship -– lack of trust and intimacy, or emotional conflict between the couple
Psychosexual skills -– lovemaking skills of either partner, or the interplay between the two

First, visit and Andrologist for a complete checkup to rule out any chronic conditions.

And now a word about man-o-pause

There’s been a lot of talk lately about andropause – basically, whether it truly exists or not. In theory, it is a significant response to hypogonadism (when the testicles are no longer producing normal levels of testosterone). With andropause, men can have symptoms similar to women in menopause such as fatigue, depression, night sweats, and low sex drive. Since testosterone naturally declines with age and can be affected by many environmental factors, it’s important to…

Eat healthy
Get seven to eight hours of sleep nightly
Limit alcohol to one drink per day
Quit smoking
Keep stress levels under control

Source: Grandparents.com