Hi, Do not here this nonsense tip given by this type of person. If this is the case then every married man should have lost energy and handicapped ! Masturbation does not have any side effect either less of energy or muscle weakness or not having any bed effect in sex life. This is just like other feelings like thirst, hunger, joy etc. At young age this is common habit where male hormone is its maximum level. So there is no harm doing masturbation. I always advice that keep this habit in control as excess in every thing should be avoided. If one person does not doing masturbation, excess amount of semen is going into blood stream, metabolized in the body and will be thrown by kidneys. Ok and take care.