Stem cell technique could reverse a major type of infertility
Fertile sperm are rare in men with an extra sex chromosomeDennis Kunkle Microscopy/SPLBy Andy CoghlanTurning skin cells into sperm may one day help some infertile men have babies. Research in mice has found a way to make fertile sperm from animals born with too many sex chromosomes. Most men have two sex chromosomes – one X and one Y – but some have...
I regard the brain as a computer which will stop working when its component fail. There is no heaven or afterlife for broken-down computers. That is a fairy story for people afraid of the dark