Quit smoking, alcohol and drugs. Expose yourself to sunlight. Maintain healthy body weight if you are obese or over weight. Consume Fenugreek and Ashwagandha. Avoid medicines that affect your sperm count or cause low libido/erection problems. Increase good fat intake and reduce saturated fats. Avoid soy and estrogen rich foods. Eat enough amounts of folate, zinc and magnesium. Avoid living in industrial or polluted areas.