We are always told that masturbation causes several problems:
Physically : tiredness, fatigue ,blurred vision,lower back pain, pain in the genitals, hair loss, dry skin, weakness of muscles and nerves, brain dysfunctions (in the future), it can also lead to sexual dysfunction O_o..
Psychologically : solitude, isolation, a sense of guilt, remorse.
I only would like to make sure if the mentioned above is true or not..
And is it also harmful to masturbate once a week ?