Hello and thank you for your question! Erectile disfunction is a common symptom in adult of reproductive age. The process of erection is complex and usually involves hormones, blood vessels, emotions etc. Also, Erectile Dysfunction can be caused by a combination of physical and psychological issues .In most cases, the major factor of ED, is something physical including : Clogged blood vessels (atherosclerosis) Diabetes,High blood pressure,smoking and drinking. The Psychological causes of ED include : Stress and anxiety. Its very helpful to exercise and to do sports for your health so keep practicing in basketball . Feel free to as me again for any other concern. Best regards! involves the brain, hormones, emotions, nerves, muscles and blood vessels