Polygamy and disease: Intermarrying Mormon town faces genetic disaster

abc polygamy family jef wmain

Brigham Young, who led the [Mormons] back in the mid-19th Century, was a passionate believer in [polygamy]. By the time he died, his family had swelled to 55 wives and 59 children.

Fast-forward to 1990, a century after polygyny was abandoned, and the upshot was only just beginning to emerge….[A] 10-year-old boy was presented to Theodore Tarby, a doctor specializing in rare childhood diseases. The boy had unusual facial features [and] was also severely physically and mentally disabled.

[S]oon Tarby had diagnosed a total of eight new cases…from the same region on the Arizona-Utah border, known as Short Creek…In this small, isolated community of Fundamentalist Church of Jesus Christ of Latter-Day Saints (FLDS), the likelihood of being born with fumarase deficiency is over a million times above the global average.

p n p
Colorado City is one of the two towns where the remote community live (Credit: iStock)

…

According to local historian Benjamin Bistline, 75 to 80% of people in Short Creek are blood relatives of the community’s founding patriarchs, Joseph Jessop and John Barlow.

“With polygyny you’re decreasing the overall genetic diversity because a few men are having a disproportionate impact on the next generation,” says Mark Stoneking, a geneticist at the Max Planck Institute for Evolutionary Anthropology, Germany.

The GLP aggregated and excerpted this blog/article to reflect the diversity of news, opinion, and analysis. Read full, original post: The Polygamous Town Facing Genetic Disaster

Related Articles

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Does glyphosate—the world's most heavily-used herbicide—pose serious harm to humans? Is it carcinogenic? Those issues are of both legal and ...

Most Popular

ChatGPT-Image-Mar-10-2026-01_39_01-PM
Viewpoint—“Miracle molecule” debunked: Why acemannan supplements don’t work
Screenshot-2026-09-17-at-1.07.08-PM
'We are dangerously addicted to antidepressants': Should we heed RFK Jr.’s sobering warning?
Screenshot-2026-09-03-at-10.51.20-AM
Viewpoint: Why do online health lies outlive the evidence that debunks them? Read "Everyone Else Is Lying to You"
ChatGPT-Image-Sep-23-2026-01_52_03-PM
Viewpoint: 4 very real AI doomsday scenarios
ChatGPT-Image-Sep-2-2026-02_03_32-PM
How much of a problem is AI’s water use?
ChatGPT-Image-Sep-22-2026-10_32_46-AM
There has been a slew of recent reports of food recalls and foodborne outbreaks. Do we face an escalating problem?
ChatGPT-Image-Aug-26-2026-12_46_16-PM
Viewpoint: The fake controversy over whether combining childhood vaccines is dangerous— a debate science resolved 25 years ago
Screenshot-2026-09-23-at-11.55.01-AM
How can we know if social media bans actually help teens?
Screenshot-2026-09-23-at-3.15.09-PM
Anti-GMO activists in Pakistan rev up their campaign of dire warnings
Screenshot-2026-09-22-at-11.40.28-AM
After Idaho criminalized abortion providers in 2022, one-third of obstetricians fled. Health care advocates are making rural health the case for repealing the ban
Screenshot-2026-09-17-at-12.00.30-PM
Investigative group ProPublica finds links between ectopic pregnancy deaths and abortion bans
Screenshot-2026-09-10-at-12.20.19-PM
'Jet fuel didn't melt the steel': 9/11 conspiracy theories debunked
glp menu logo outlined

Get news on human & agricultural genetics and biotechnology delivered to your inbox.