Does coffee make my sperm more energetic and increase my fertility?

The Viagra (sildenafil) effect! Caffeine is a nonspecific phosphodiesterase inhibitor (same family as viagra). It's been shown to increase sperm motility in the test tube. Viagra (sildenafil) has been shown to have similar effects on sperm motility.That doesnt translate into better fertility. In moderate amounts coffee might be useful. Get checked out. If everything else is ok. Go to starbuck and indulge once a day. Shouldnt hurt, may help.