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

In medicine, rudeness may hurt more than feelings

Like all professions, medicine has its fair share of office politics — which can generate sniping, griping, eye-rolling and even the occasional temper tantrum. Yet, in a medical setting, can day-to-day rudeness do more than cause hurt feelings and wounded pride? Applying findings from several studies analyzing the cognitive impact of …

Study: teens benefit from later school start

New research published this week in the Archives of Pediatrics & Adolescent Medicine finds that, starting the school day just a half hour later was associated with significant benefits for teens — from better sleep and enhanced alertness to improved mood and overall well being. The findings contribute to a growing body of research on …

Global poll: can money buy happiness?

A new Gallup poll of more than 136,000 people from 132 countries around the world and a broad range of ethnic and economic backgrounds finds that, while people generally associated having more money with a greater satisfaction with their overall quality of life, when researchers focused on other measures of happiness — day to day …

A sweet solution to antibiotic-resistance?

Amid growing concerns about antibiotic-resistant bacteria, a team of researchers from the Netherlands may be developing a sweet way to fend off harmful bacteria. A new study in the July issue of the FASEB Journal details their research investigating the antimicrobial properties of an ingredient in honey known as defensin-1. Researchers …

Some 40 million doses of H1N1 vaccine to be destroyed

As much as 43% of the U.S. swine flu vaccine supply may ultimately go unused — and be destroyed — according to a new report from the Associated Press. Roughly 40 million doses, or one quarter of the total supply produced by the U.S. to cope with the outbreak, have already expired and will be incinerated by public health authorities. …

Active youth linked to lower risk for cognitive decline

A new study analyzing physical activity at different phases of life for more than 9,000 elderly women finds that routine exercise at any age was associated with a reduced risk for cognitive decline or dementia, but that regular physical activity during teenage years was most strongly linked to a lower risk for mental deterioration later …

Pregnant drinking link to low sperm count for sons?

Research presented this week at the annual meeting of the European Society of Human Reproduction and Embryology in Rome suggests that men whose mothers had several alcohol drinks per week during pregnancy may have lower quality sperm. The study, conducted by researchers from the University of Aarhus in Denmark, studied 347 men born …

Developing a once-a-month male birth control pill?

In the search for a form of male contraception that can rival the female birth control pill, a team of researchers from Israel may have just made a breakthrough. As the Telegraph reports, in initial animal trials the team of researchers found that a pill they’d developed — which works by stripping sperm of a protein necessary to …

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