D in males have been found to be related to elevated rates of heart problems, poor sperm counts and predisposition to ...

In A Nutshell Space radiation can damage reproductive DNA. A Mars trip exposes travelers to 662 millisieverts: levels known ...

Spermatogenesis depends on micronutrients because sperm cells show high sensitivity to oxidative damage caused by their lipid ...

When couples plan for a baby, they often focus on diet, timing, and stress. However, an often-overlooked factor is the calendar itself. For decades, scientists have observed that birth rates tend to ...

Businessman, influencer, and public speaker Brian Mazza was diagnosed with male factor infertility. Tests showed he had a low sperm count, and he felt as if he was letting down his wife and family. He ...

Because only part of the man's sperm carried the mutation, only the second round of genetic testing revealed the problem. By then, it was already too late. Reading time 3 minutes A man who donated ...

For decades, U.S. marriage rates have been on the decline while the average age at which Americans have children has risen. Alongside this, birth rates have dropped — a phenomenon the Health and Human ...

Scientists have identified a protein that may be key to proper sperm formation. Without it, male mice produced no viable sperm, they found. A team at the RIKEN Center for Biosystems Dynamics Research ...

In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures in biology. The human penis is so uniform, it's an anatomical outlier.

Michelle Spear does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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