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.
Answer Wiki. There is no male menopause, which means man can continue to produce sperms till the day he dies. Andropause (Male Menopause) is caused by the reduction of hormones testosterone and dehydroepiandrosterone and/or decrease of Leydig cells in men. But, it's yet to be recognized by WHO.