A method of interrupting the life cycle of sperm that includes subjecting a user to a first and a second treatment session in a male birth-control cycle. The first treatment session including a mature-sperm inhibition step of emitting, through at least one transducer, an amount energy for a predetermined period of time that is directed to the entire male reproductive system including but not limited to at least one of an epididymal tubules and an ejaculation ducts of the user, via a constant coupling configuration of the transducer with the user, to render a plurality of sperm transported therein to be immotile. The second treatment session includes subjecting the user to the mature-sperm inhibition step before a sperm-maturation time whereby sperm carried by the user are in a mature state.
