By the time men turn 40 years old, they will experience a decrease in the volume of the semen they can produce and the motility of the sperm also reduces. Although men can continue to produce new sperm well into their 90s (the oldest dad on record so far is close to 96!), male infertility rates increase with age just like female infertility.
As men get older, they also have a higher risk for some of the following health conditions:
- High blood pressure
- Heart disease
- Diabetes
These conditions not only affect the general health of the man, they can also affect the quality and quantity of semen produced.