Is it ethical to use a dead man's sperm to become pregnant?
- 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?
A new study in Human Reproduction says men have to keep moving.
- 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.
A harrowing new report by the CDC should serve as a wake-up call.
- 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.
A team of Japanese researchers comes across a remarkably simple trick.
- 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.
A unique 3D model allows researchers to explore embryonic development.
- 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.