To understand how pregnancy is possible during a period, you must know how the menstrual cycle works. The cycle typically lasts 28 to 32 days, although it can vary slightly. It is divided into four ...
New study reveals how stress boosts sperm motility through mitochondrial changes and epigenetic shifts. Study: Stress increases sperm respiration and motility in mice and men. Image Credit: Rost9 / ...
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