Is masturbation normal? Is it sin? What is masturbation anyway?

Masturbation is the stimulation or manipulation of one's own genitals, especially to orgasm; sexual self-gratification.

Some people believe it’s natural to do this; where others do not shame the same belief. What does the word of God say about this? We discuss 5 reason Christians Should Never Masturbate because if it's sin, you do not want any part of it.  Thursday 10pm EST/ 7pm PST