01 — Sperm predicts how long you live
Men with the best semen live 2.7 years longer.
[1] PRISKORN ET AL., 2025 · 78,284 MEN FOLLOWED FOR UP TO 50 YEARS
And men with poor semen get sick sooner.
How much higher the risk is than for men with normal semen. The light part of each bar is normal risk (1×); the dark part is the extra risk.
NORMAL RISK · 1×EXTRA RISK
Death, with two or more abnormal semen parameters2.3×
[2] EISENBERG ET AL., 2014
Ischemic heart disease, after male-factor infertility1.48×
[3] EISENBERG ET AL., 2016
Diabetes, after male-factor infertility1.3×
[3] EISENBERG ET AL., 2016
02 — For longevity clinics
Longevity starts before conception: healthier embryos, a future generation that lives better and longer.
The most precise analyses, and the intelligence behind optimizing the man and his child, with Midwinter.
01
Aligned models
Proactive, individual, longitudinal, like your practice.
02
A premium program for men
A recurring 90-day program, under your care.
03
Own men’s longevity
Co-author the research with us.
Scope a pilot.
A 30-minute call.
Sources
- Priskorn L. et al. Semen quality and lifespan: a study of 78,284 men followed for up to 50 years. Human Reproduction, 2025.
- Eisenberg M.L. et al. Semen quality, infertility and mortality in the USA. Human Reproduction, 2014.
- Eisenberg M.L. et al. Increased risk of incident chronic medical conditions in infertile men: analysis of United States claims data. Fertility and Sterility, 2016.