Sleep 7–9 hours per night
Maintain a healthy body weight
Do regular resistance training
Do high-intensity interval training
Eat enough protein
Eat enough healthy fats
Avoid extreme calorie restriction
Limit alcohol intake
Manage stress
Get enough vitamin D
Get enough zinc
Get enough magnesium
Treat sleep apnea if present
Stop smoking
Avoid anabolic steroid use
Review medications with a doctor
Address underlying medical conditions
Have regular sexual activity if desired
Spend time outdoors
Reduce exposure to endocrine disruptors
Get periodic blood tests if concerned