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.
men always produce fertile sperm until the day they die, although as they reach their 40-50's the quality and strength of the swimmers decrease. Women can go into menopause anywhere from early 40's to late 50's. depends on the woman. Generally, men DONT stop producing fertile sperm. 1 - 99 1/2 #2 - Age varies - usually 45 to 50.