Masturbation is a normal sexual activity,you are not going to have heart problem by engaging in this form of sexual activity.
Sexual drive is a powerful energy. This energy can be converted into mental energy and mental energy into spiritual energy, enhancing happiness in life. Google the following words to know the techniques. Pick up some of them and practice them regularly. You will be doing favors to yourself.
Deer exercise (male), microcosmic orbit, kegel exercise, Sat kriya. Peripheral prostate anal massage, abdominal prostate massage, Perineum massage, Upper inner thigh massage.Kundalini yoga.Taoist yoga. You may masturbate when it is absolutely necessary. While doing M, follow the following tips.
Do not masturbate with dry hand. use lubricated hand. Do not stop breathing during M. keep your perineum relaxed, Do not over visualize sexual scenario.Do jerking as well as thrusting while doing M,Do not masturbate when excessively aroused. Do not masturbate when you are in a hurry..Keep your bladder empty. Aim is to do M as close to natural intercourse
seems informative , will look into it , and pass it along if another asks
Recently I re-read a meditation. It is based on a concept that a male has female aspect as well and female has a male aspect also. If you can mental coitus with your opposite sex( not other person), creating mental picture or rehersal of the sexual act with all activities of thrusting , vibrating,moving etc, you can reach a blissful stage. This concept deserves some exploration. If i find this subject in the itnternet, I would post it.-if you desire.