Latest Issue

Let’s all be friends

New research shows how our social ties can influence us for better—and worse: making us fatter, more likely to smoke, marry, divorce and even vote. Governments should take heed

By James Crabtree   March 2010

Spamalot: successful musicals need the right mix of new and old teammates

If friends of your friends begin to put on weight, you are likely to do the same—even if you don’t know the people in question, and even if they live hundreds of miles away. Obesity spreads like a fad; it is contagious.

This striking finding about how obesity spreads through social networks was the result of a 30-year study in Massachussetts, as Nicholas A Christakis and James H Fowler note in their new book, Connected: The Surprising Power of Social Networks and How They Shape Our Lives (HarperPress).…

Register today to continue reading

You’ve hit your limit of three articles in the last 30 days. To get seven more, simply enter your email address below.

You’ll also receive our free e-book Prospect’s Top Thinkers 2020 and our newsletter with the best new writing on politics, economics, literature and the arts.

Prospect may process your personal information for our legitimate business purposes, to provide you with newsletters, subscription offers and other relevant information.

Click here to learn more about these purposes and how we use your data. You will be able to opt-out of further contact on the next page and in all our communications.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

We want to hear what you think about this article. Submit a letter to

More From Prospect