Tiffany O'Callaghan

Tiffany O'Callaghan has been a contributing health and science reporter for TIME and TIME.com since August 2007. She is based in Seattle.

Articles from Contributor

Treating vertigo and dizziness with Tai Chi?

Tai Chi, the ancient Chinese art that combines slow, controlled stretching with meditation, has long been praised by advocates of alternative medicine for its broad range of health benefits, including improved muscle tone and balance, as well as pain reduction. The National Institutes of Health’s National Center for Complementary and

Can air pollution cause appendicitis?

Looking back at historical data, more than a few scientists have noticed an interesting trend—during surges in industrialization, there appeared to be corresponding jumps in appendicitis cases. With the growth of industry in North America and Europe during the 1800s and early 1900s came the increased emission of pollutants such as

Preventing childhood burn injuries

Between 1990 and 2006, overall numbers of burn injuries among children dropped by 31%, according to a study published in the November issue of the journal Pediatrics. Yet while that decrease is cause for celebration—for parents and pediatricians alike—authors of the large scale study, which analyzed some two million burn injuries

The impossible dilemma of an embryo mix-up

A hospital mix-up last January forced would-be mom Carolyn Savage and her husband Sean to make a heartrending decision. Ten days after the Savages went to a fertility clinic to have embryos transferred in hopes of conceiving, they got a devastating phone call. Savage had successfully gotten pregnant, but the baby wasn’t hers—the embryo

Why some girls like pretty boys?

Girls who attend single sex schools are more likely to find boys with “feminine” features attractive, according to a story from the BBC. The article refers to a study from St. Andrews University in Scotland, in which researchers asked 240 kids between the ages of 11-15 to rate faces by attractiveness. They found that, girls who attended

For punishment, actions speak louder than intentions

When doling out punishment for crimes or misdeeds, the rules of society tend to focus more on the results of behavior, and not as much on intentions: a person who runs a red light through an empty intersection may get a ticket, but a person who runs a red light, crashes into another car and injures that driver will likely face more

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