Entries in Temperature (3)


Heart Attack Risk May Increase in Cold Temperatures

Jupiterimages/Thinkstock(UNIVERSITY PARK, Pa.) -- Frigid temperatures can be a trigger for some coronary problems, which could explain why fatal heart attacks typically peak during winter months, according to a new study.  

Researchers at the Pennsylvania State College of Medicine found that breathing cold air during physical activity can increase the body's need for oxygen. The increased need for oxygen could be troublesome for people with heart disease since the risk for cardiac arrest and death is greater, the researchers report in the study published in the Journal of Applied Physiology and The American Journal of Physiology, Heart and Circulatory Physiology.

During the trial, researchers studied the lung and heart function of healthy adults in their 20s and 60s, while exposing them to cold temperatures. The researchers found that since their hearts were healthy, the participants were able to keep up with the changes in the demands for oxygen being supplied to the heart.  For those with heart disease, the increased demands may be too much.

Bottom line, heart disease patients may want to be more cautious during cold weather exercise.

Copyright 2012 ABC News


Are You Overtreating Your Child's Fevers?

Photo Courtesy - Getty Images(ELK GROVE VILLAGE, Ill.) -- For the first time, the American Academy of Pediatrics has released guidelines for parents and health care professionals on how to deal with fevers in children.

It says that if you give your child Advil or Tylenol for a one hundred degree Temperature, then you have "fever phobia."

That's because mild fevers are not harmful and don't need to be treated aggressively.

Fever is common symptom in children. But a fever helps the body fight infection and should be treated to improve a child's level of body temperature.

This advice does not apply to children with certain chronic conditions or to children under three months of age -- who should be taken to the doctor if they have a fever.

But for other youngsters, the bottom line is don't treat fever just because it's there.

Copyright 2011 ABC News Radio´╗┐


Brr! Can Frigid Temps Lead to Weight Loss?

Author Tim Ferriss; Photo Courtesy - ABC News (NEW YORK) -- Finally, an upside to the frigid temperatures that have gripped much of the nation -- all the shivering could help shed a few pounds.

"The body wants to maintain a balance, a homeostasis of 98.6 degrees," said author Tim Ferriss, who promotes this type of "thermal dieting." "If you make it cold, the body will do everything it can to get back to 98.6. And it has to burn calories to do that -- heat equals calories."

Ferriss, the best-selling author behind The 4-Hour Workweek and the just-released The 4-Hour Body, is known for his lessons on how to manipulate the body to your advantage.

Using winter to lose that winter weight is just one example. He said people can burn up to 50 percent more calories by exposing themselves to below-freezing temperatures, which causes the body to work overtime.

"There's actually a type of fat called brown adipose tissue -- BAT," he said. "Cold can trigger this BAT. It actually produces heat, and you burn fat tissue."

But Dr. David Katz, director and founder of the Integrative Medicine Center and professor at Yale University, was doubtful and said if people were really that desperate to lose weight, they should just try diet and exercise.

He also warned that exposure to extreme cold, especially through ice baths, could cause complications in people with cardiovascular problems or even induce cardiac arrhythmia in those at risk. Ferriss himself also notes in his book that readers should consult a physician before attempting some of these techniques.

Copyright 2010 ABC News Radio ´╗┐

ABC News Radio