Why you need to have more sex according to science ,1A stronger immune system,2 Better heart health,3. Lower blood pressure. Published April 20, 2017 at 620 × 310 in Why you need to have more sex according to science ,1A stronger immune system,2 Better heart health,3. Lower blood pressure. Why you need to have more sex according to science ,1A stronger immune system,2 Better heart health,3. Lower blood pressure. Why you need to have more sex according to science ,1A stronger immune system,2 Better heart health,3. Lower blood pressure. ← Previous Next →