Cut your bought or home grown spring onions about 3cm (1in) above the root. Use the leaves in cooking and add the stem/roots to a glass with clean water to rehydrate roots. Change water daily & keep in a well lit position such as a windowsill or kitchen bench. Watch green leaves regrow.
Basically, a hard thwack to the balls would do the trick.   Also, a man could stop producing sperm because â¦of a hormone imbalance, especially age related.     Men never stop making spermatazoa after the onset of puberty, as long as their testicles remain intact.
Answers. 1  Sperm production begins to occur around the time of puberty and continues throughout a man's life. However, as a male ages the rate of sperm production gradually declines. The average healthy adult male produces a few thousand sperm cells each second. The normal volume of semen that a male ejaculates is 3ml (milliliters) to 5ml; each 1ml of semen normally contains 50 to 100 million sperm.