Will health, good eyesight, and bodily strength return after stopping the practice of masturbation, which had continued for two years?

Masturbation is forbidden, and one must hasten to repent from it. As for recovering from its physical effects, doctors should be consulted. Generally, sins have a negative impact on the body, while acts of obedience have a positive impact, as Ibn Abbas said: "Indeed, a good deed brings light to the heart and strength to the body, and indeed, a bad deed brings blackness to the face and weakness to the body." Thus, every deficiency and affliction is caused by sins, and repentance to Allah is hoped to restore health and strength.