Maintain a healthy weight
Exercise regularly
Eat a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats
Get enough sleep
Reduce stress
Quit smoking
Avoid recreational drugs
Limit alcohol intake
Avoid anabolic steroids and testosterone supplements unless prescribed
Keep testicles cool
Avoid tight underwear and prolonged heat exposure
Limit exposure to pesticides, heavy metals, and other toxins
Review medications with a healthcare provider
Treat underlying medical conditions
Have regular ejaculation
Consider fertility testing if conception is difficult