- Everything You Need to Know About Breast Density, From the Experts
- First Doses of Mpox Vaccine Reach Africa, But Many More Are Needed
- Seeing Through: Scientists Use Food Dye to Render Mouse Skin Transparent
- Gun Deaths to Children and Teens Have Risen in Almost All States
- Too Much Light at Night Linked to Higher Alzheimer’s Risk
- Almost 1 in 4 U.S. Adults Under 40 Have High Blood Pressure
- Exposure to PFAS ‘Forever Chemicals’ in Pregnancy Could Boost Long-Term Obesity Risk
- Cuffs on At-Home Blood Pressure Monitors Don’t Fit Some Patients
- Brain’s Wiring May Trigger Depression in Some People
- Saltwater Drops in Nose Could Shorten Kids’ Colds
Your Genes May Help Pick Your Friends
![](https://ladylively.com/wp-content/uploads/2013/08/mens-health1.jpg)
A person’s DNA may play a big role in who they decide to hang with, a new study suggests.
“Looking across the whole genome, we find that, on average, we are genetically similar to our friends,” study co-author James Fowler, a professor of medical genetics and political science at the University of California, San Diego, said in a university news release.
“We have more DNA in common with the people we pick as friends than we do with strangers in the same population,” he said.
In the study, Fowler’s team analyzed the genes of more than 1,900 people who were either pairs of unrelated friends or unrelated strangers.
He and his colleagues found that friends share about one percent of their genes and are as much “related” as fourth cousins or people who share great-great-great grandparents.
“One percent may not sound like much to the layperson, but to geneticists it is a significant number,” study co-author Nicholas Christakis, a professor of sociology, evolutionary biology and medicine at Yale University, said in the news release.
“And how remarkable: Most people don’t even know who their fourth cousins are! Yet we are somehow, among a myriad of possibilities, managing to select as friends the people who resemble our kin,” he added.
The researchers also developed what they call a “friendship score” that can be used to predict who will be friends. It’s about as accurate as genetic-based methods of predicting a person’s risk of obesity or schizophrenia.
The study was published July 14 in the Proceedings of the National Academy of Sciences.
More information
Mental Health America explains the importance of connecting with others.
Source: HealthDay
Copyright © 2024 HealthDay. All rights reserved.