Navigation Links
Warmer-Than-Average Temperatures Raise Migraine Risk
Date:3/9/2009

Barometric pressure can also trigger debilitating headaches, researchers say,,,,

MONDAY, March 9 (HealthDay News) -- If you think changes in the weather bring on migraines, it might not be all in your head.

Harvard researchers report in a new study that people are more likely to visit emergency rooms with migraines if the outside temperature is above normal. Barometric pressure has an effect, too, although it is not as significant.

The findings do not definitively prove that the weather causes migraines. Nor are they "a reason to stay indoors or move to a different part of the country," said study author Dr. Kenneth J. Mukamal, an internist at Beth Israel Deaconess Medical Center in Boston.

"But this does tell us that when we identify migraine triggers, we need to keep temperature in mind," he said. "Before, we might say it must be that ice cream that gave you a headache. Now, maybe it's the temperature that made you want to eat the ice cream."

An estimated 28 million Americans suffer from migraine headaches, perhaps as many as 17 percent of women and 6 percent of men. The headaches can disable sufferers, forcing some to flee to quiet, darkened rooms for relief.

Treatments include painkillers, biofeedback and newer drugs that relieve swelling in the brain.

Many people report "triggers" that cause their migraines, including red wine, chocolate, menstrual cycles and lack of sleep. Others blame changes in the weather, and previous studies have suggested they're on to something.

In the new study, researchers examined the records of 7,054 emergency room patients who were treated for migraines at Beth Israel Deaconess between 2000 and 2007.

The researchers tried to find links between the number of headache cases and levels of temperature, barometric pressure and humidity. They also looked at air pollution levels.

The study results appear in the March 10 issue of Neurology.

The researchers found that the number of emergency visits for headaches would rise by an average of 7.5 percent within 24 hours if the temperature rose by 9 degrees Fahrenheit above the expected temperature.

In a hypothetical example, the hospital would expect to see 7.5 percent more headache patients 24 hours after the temperature was 90 degrees instead of a typical 81 degrees.

High temperatures alone, such as those in the summer, were not as much of a trigger. The most influential factor was whether a particular day was hotter than expected.

"Warmer days were associated with higher risk, even in the winter," Mukamal said.

The researchers also found that drops in barometric pressure made headache visits more likely 48 to 72 hours later. Pollution did not seem to have an effect on headaches.

Why might the weather affect migraines? Barometric pressure could affect the layer of fluid that protects the brain inside the skull, said Dr. Richard Lipton, director of the Montefiore Headache Center at Montefiore Medical Center in New York City. But the effect of temperature, he said, is mystifying.

"If someone knows that they're vulnerable to changes in temperature, what they might do is be particularly cautious about the things they can control," he said. "If you know the temperature is changing, that might be a good day to make sure you get your regular amount of sleep, avoid red wine, chocolate and the other triggers."

More information

The U.S. National Institute of Neurological Disorders and Stroke has more on migraines.



SOURCES: Kenneth J. Mukamal, M.D., internist, Beth Israel Deaconess Medical Center, Boston; and Richard Lipton, M.D., director, Montefiore Headache Center, Montefiore Medical Center, New York City; March 10, 2009, Neurology


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Summer Temperatures Linger, Extend Threat of Parasites
2. Changes in narcoleptics skin, core body temperatures affect their vigilance and sleepiness
3. Medical Director for Renowned Los Angeles Jewish Home Offers Top Tips to Elderly in Coping With Searing Temperatures Across U.S.
4. Oh-So-Cold Temperatures Plague Older People
5. Dog bites a particular threat to young children, especially as temperatures rise
6. New review suggests caution on drugs to raise good cholesterol
7. Antioxidant Supplements May Raise Womens Skin Cancer Risk
8. Acrylamide Wont Raise Breast Cancer Risk
9. The Philadelphia Walk Now for Autism Expected to Draw 10,000 Walkers and Raise $1 Million to Help Find Answers About the Nations Fastest-Growing Developmental Disorder
10. BlueCare(R) Family Plan, a HUSKY Health Plan from Anthem Blue Cross and Blue Shield in Connecticut, Raises Awareness, Funds and Diapers for New Haven Diaper Bank
11. Mercedes-Benz Special Edition C350 Sport Sedan to Raise $1 Million for Saks Fifth Avenues KEY TO THE CURE
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Warmer-Than-Average Temperatures Raise Migraine Risk
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, ... Bronze Wellness at Work award to iHire in recognition of their exemplary accomplishments in ... the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... people are unfamiliar with. The article goes on to state that individuals are now ... of these less common operations such as calf and cheek reduction. The Los Angeles ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle Cell ... pain and the benefits of holistic treatments, Serenity Recovery Center of Marne, ... Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the red blood ...
(Date:6/24/2016)... ... 24, 2016 , ... The Pulmonary Hypertension Association (PHA) learned ... receive two significant new grants to support its work to advance research and ... by recognizing patients, medical professionals and scientists for their work in fighting pulmonary ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with all ... brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... and SAN CLEMENTE, Calif. , June 24, ... -based mobile pulmonary function testing company, is now able to perform ... developed by ndd Medical Technologies , Inc. ... in hospital-based labs.  Thanks to ndd,s EasyOne PRO ® , ARL ... can get any needed testing done in the comfort of her ...
(Date:6/24/2016)... , June 24, 2016  Arkis BioSciences, a ... invasive and more durable cerebrospinal fluid treatments, today ... The Series-A funding is led by Innova Memphis, ... and other private investors.  Arkis, new financing will ... and the market release of its in-licensed Endexo® ...
(Date:6/23/2016)... , June 23, 2016  In a startling report released ... failing their residents by lacking a comprehensive, proven plan to eliminate ... a definitive ranking of how states are tackling the worst drug ... only four states – Kentucky , ... Vermont . Of the 28 failing states, three – ...
Breaking Medicine Technology: