Health in the News

More heart attacks in winter

Studies reported by the European Society of Cardiology show that heart attack risk doubled when temperatures dropped below 39.2 degrees. The cold temperature constricts blood vessels and thickens blood, making clots more likely, say the researchers. They tracked more than 700 patients hospitalized over a two-year period. People with high blood pressure were at greater risk.

This is a partial explanation of the high number of heart attacks among people who are shoveling snow. Cold temperatures add to the exertion of shoveling snow and significantly increase risk.

Anyone can buy a defibrillator

The Food and Drug Administration has approved purchase of a defibrillator without a doctor's prescription. Anyone worried about sudden cardiac arrest can purchase the $2,000 HeartStart home defibrillator.

About 80 percent of sudden cardiac arrest cases happen at home. Cardiac arrest is best treated by a shock from a defibrillator. Those buying a home defibrillator are cautioned to call 911 first, then use the home defibrillator until professional help arrives.

The device is approved for adults and children at least 8 years old and weighing at least 55 pounds.

Sick workers: Stay home

A study by Cornell University labor researchers shows that it's better for employers if sick people don't come to work.

People who are sick have more trouble concentrating, work more slowly, and have to redo tasks. They slow down productivity overall, the study found.

If their disease is infectious, such as a cold or the flu, workers can spread the sickness to others, although the study did not include that factor in calculating sick worker costs.

The Cornell researchers conclude that sick workers and the lost productivity they cause represent a cost of $255 per employee per year.