Smoking pot more than once a week 'lowers sperm count by a third - and adding cocaine and ecstasy to the mix cuts it by half'

Woman who could die in pregnancy is refused IVF surrogacy as she is not ‘exceptional case’

Sperm have harpoon-like abilities to attach to egg

02 Sept 2015

A study in Andrology finds that the protein SLLP-1 may crystallise into filaments that penetrate the egg to aid sperm latching onto eggs.

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