Raising sperm count
Heat will lower your count.
A few simple things you can do are wear boxers, looser trousers, and avoid hot tubs. Also, make sure you are eating a healthy diet
, excercizing moderately, avoiding stress
, and not smoking
Certain medications can lower your sperm count
as well. Your physician can talk to you about any you are taking that might have an effect.
Answer assisted by Ken Starnes, Medical Student