Study suggests sperm donation, like organs, should be allowed post-mortem

Is it ethical to use a dead man's sperm to become pregnant?

Photo by Lina White on Unsplash
  • Many parts of the world are suffering from a shortage of sperm donors due to the high bar for acceptance and varying laws regarding donor anonymity.
  • A recent article suggested that, as a solution, we should consider allowing men to opt-in to posthumous sperm donation, much like men and women do for organ donation.
  • It's technically feasible, but how would we navigate the complex ethical and legal issues surrounding such a proposal?
Keep reading Show less

Male sperm count is declining globally. Exercise helps.

A new study in Human Reproduction says men have to keep moving.

Photo by: QAI Publishing/Universal Images Group via Getty Images
  • A new study, published in Human Reproduction, found that exercise helps increase sperm motility.
  • 746 healthy young men were studied over a six-month period; the more exercise they got, the better their sperm.
  • Globally, sperm counts have gone down by over 50 percent over the last half-century.
Keep reading Show less

Sexually transmitted disease rates are booming

A harrowing new report by the CDC should serve as a wake-up call.

Image source: MinDof/Shutterstock
  • STD rates have risen every year since 2013, with 2017 showing the largest increase.
  • Syphilis passed from mothers to babies is causing easily preventable infant deaths.
  • STDs are easy to cure so far — the key is getting regularly tested.
Keep reading Show less

There may be a very easy way to predict the sex of sperm

A team of Japanese researchers comes across a remarkably simple trick.

Image source: Shidlovski / Shutterstock / Big Think
  • On average, ejaculate holds about a 50/50 mix of X and Y sperm.
  • In some cultures and countries, there are strong historical and contemporary preferences for males over females.
  • There are genes unique to X sperm that can be manipulated to make them swim more slowly than Y sperm.
Keep reading Show less

A man-made embryo shows how a stem cell finds its role

A unique 3D model allows researchers to explore embryonic development.

Image source: Mijo Simunovic/Rockefeller University
  • Researchers observe the beginning of embryonic stem cells dividing into upper and lower body sections.
  • An interdisciplinary team invents an impressively accurate 10-day-old "embryoid."
  • The team's model may be important to other future research on pregnancy.
Keep reading Show less