Feb 9, 2006 Researchers have gained insight into how a wriggling sperm thrusts itself into an egg. Researchers have identified a key component of the mechanism spermatozoa use to abruptly convert their tail motion from a steady swimming undulation to the whip-cracking snap that thrusts them.
May 15, 2018 In men, marijuana use can decrease the sperm count as well as affect the Heroin, cocaine, and crack cocaine use induces similar effects but.
Nov 8, 2011 Bad food, bad genes, and monogamy are sucking the life out of human sperm. But conceptive gels and stem cells could bring some virility.
When users smoke crack cocaine, they inhale the vapors into the lungs where . Cocaine use in males is believed to lower the sperm count, reduce motility and.
Drug abuse can harm the male and female reproductive systems, harm fertility, and have devastating effects on a developing fetus.