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\"Culturally, we see [older] celebrity dads all the time and it makes it seem like, 'Oh it's not a big deal. It's pretty commonplace,' but we do have to remember just as women go through menopause ... men actually go through a similar process called andropause, so no one escapes it.\"

If men are concerned about declining fertility, Ashton said they should talk to a physician and get a semen analysis.

More tips from Ashton for boosting fertility:

Do not smoke
This goes for both men and women.

Avoid heat
Ashton said putting laptops on your laps and going into saunas and jacuzzis could all affect male fertility.

Exercise regularly

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