Stay well hydrated
Get enough sleep
Exercise regularly
Eat a balanced diet
Avoid smoking
Limit alcohol
Reduce stress
Avoid frequent ejaculation for a short period before sex or masturbation
Maintain a healthy weight
Consider zinc-rich foods
Consider folate-rich foods
Consider omega-3-rich foods
Avoid overheating the testicles
Review medications that may affect ejaculation with a doctor
Treat any underlying medical issues with a doctor
See a urologist if the problem is persistent