Navigation Links
'Heat Dome' Continues to Throttle U.S.
Date:7/20/2011

WEDNESDAY, July 20 (HealthDay News) -- The meteorological monster -- dubbed a "heat dome" by weather experts -- that has throttled much of the United States from the Southwest to the Ohio Valley for days, pushed into the Northeast Wednesday, ushering in oppressive humidity, temperatures in the high 90s and heat indices surpassing 100 degrees.

The heat wave, blamed for as many as 13 deaths in the Midwest alone, is expected to break for some parts of the northern United States late Wednesday and Thursday with the arrival of a cold front. The result will be a significant drop in temperatures across the north central states for the rest of the week. But, the central and southern Plains, much of the Midwest and even the Northeast won't feel much change from the extended heat, according to the National Weather Service.

Triple-digit temperatures are forecast to remain in place across much of the eastern United States through Saturday, before cooling off slightly to the mid-90s by Sunday, the weather service said.

Until the heat breaks, doctors are warning that high temperatures can cause serious -- and potentially fatal -- health problems, especially for the very young, the elderly and those with chronic medical conditions.

Dr. Janyce Sanford, chair of emergency medicine at the University of Alabama at Birmingham Hospital, said heat-related illnesses include a range of ills, from mild to severe.

"Someone who has been working out in the heat may start to experience the beginning stages with heat cramps. As it progresses, the next step is heat exhaustion. They may develop a severe headache, nausea, vomiting, and a feeling of severe weakness," she said in a university news release.

The most serious -- and potentially fatal -- heat-related illness is heat stroke, Sanford said.

"When you reach this point, the severely elevated body temperature causes an altered mental state, dizziness and ultimately can lead to a loss of consciousness. The muscles can start to break down, which leads to kidney failure; this makes heat stroke a life-threatening illness," she said.

Though rare, heat stroke is most often seen in very young and elderly people, or people with a chronic illness.

The safest place to be during a heat wave is indoors -- if air conditioning is available, experts say. Remain in the air-conditioning as long as possible. And limit outdoor activity to morning and evening hours when temperatures are relatively cooler.

Sanford offers the following advice:

  • Avoid being outside during the hottest part of the day, 11 a.m. to 4 p.m. Wear light-colored and lightweight clothing, a hat, and remember that 100 percent cotton clothing tends to hold sweat, making it harder for your body to cool off.
  • Thirst isn't always a good sign of hydration status. In children, the thirst mechanism isn't fully developed, and in seniors, the sense of thirst has diminished. By the time your brain signals thirst, you may have lost 1 percent of your body weight -- about 3 cups of sweat for a 150-pound person.
  • Urine color is an important indicator of hydration. A well-hydrated person's urine will be almost clear. Darker colors indicate less hydration. Not having to urinate at all after intense workouts is a warning sign of real dehydration.
  • If you exercise for less than 90 minutes at a time, cool water (40 degrees F) is all you need to replace fluids. You should drink about 16 ounces of water two hours before exercising, eight ounces every 15 to 20 minutes during exercise, and then at least another 16 ounces after finishing. Drink until your thirst is quenched, and then drink even more to fully rehydrate.
  • Sports beverages are appropriate if you're exercising for more than 90 minutes. These beverages should be consumed only during exercise and not before, because they might trigger a hypoglycemic -- or low glucose -- effect, potentially reducing performance.

It's also best to avoid caffeine and alcohol. Drinks that contain caffeine, alcohol, or large amounts of sugar can cause dehydration and irritability.

More information

For more tips on protecting yourself from the heat, check out this U.S. Centers for Disease Control and Prevention extreme heat toolkit.

-- Mary Elizabeth Dallas

SOURCES: U.S. National Weather Service; University of Alabama at Birmingham Hospital, news release, July 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Tanning Bed Regulation Heats Up
2. First Breakthrough in Water Heating Technology!
3. Arizona State Universitys Decision Theater offers balance to an off-kilter world
4. Manduka Turns up the Heat With Introduction of eQua(TM) Hot Yoga Towel
5. Less Is More with the Innovation of Avemar(R) Fermented Wheat Germ Extract
6. Tumors may respond to extreme and moderate heat
7. Heat Therapy Helps Treat U.S. Soldiers Infections
8. Movie Theaters Asked to Offer Healthier Snacks at Concession Stands
9. Jackee Harry - Star of TV, Film and Theatre – New GBG Spokesperson
10. Chronomite Tankless Water Heaters Launches New Website
11. Most High Schoolers Today Cheat
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2016)... (PRWEB) , ... February 05, 2016 , ... US ... Yoga Studio in Dover, NH to direct high-performance kids yoga training. ChildLight Yoga Studio ... seacoast, just one hour from Boston. , ChildLight Yoga Studio founder Lisa Flynn expresses ...
(Date:2/5/2016)... ... 2016 , ... Give To Cure today announced that it is ... Give To Cure’s campaign that is crowdfunding clinical trials to help find cures faster ... through a smart device. In 2015 alone, Venmo processed $7.5 billion in transactions among ...
(Date:2/5/2016)... ... February 05, 2016 , ... Dr. Justin Scott and Dr. ... Annual No Cost Dental Day to individuals in need. The event is scheduled to ... No Cost Dental Day is to provide dental care to community members in need. ...
(Date:2/5/2016)... Pekin, IL (PRWEB) , ... February 05, 2016 , ... ... in disguised form as a dream. A hallmark feature of patients with eating disorders ... and needs. The eating disorder behaviors and obsessions are regarded as maladaptive means for ...
(Date:2/5/2016)... ... , ... Calls Blacklist has just been updated by mobile app developer Vlad ... has fixed known bugs within the app. Calls Blacklist allows its users to only ... any of their device’s battery power or memory. It provides a powerful call blocker ...
Breaking Medicine News(10 mins):
(Date:2/4/2016)... 2016  SciClone Pharmaceuticals, Inc. (NASDAQ: SCLN ... into a settlement agreement with the United States ... SEC,s investigation into possible violations of the Foreign ... the settlement agreement, SciClone has agreed to pay ... interest and a penalty.  This payment is in ...
(Date:2/4/2016)... , Feb. 4, 2016 Global ... competitive market to drive long-term market growth ... common set of chronic disorders that affect 5–7% ... in terms of their symptoms and key patient ... dysregulation of immune pathways and an inappropriate immune ...
(Date:2/4/2016)... DIEGO, Feb. 4, 2016  Aethlon Medical, Inc. ... affinity biofiltration devices to treat life-threatening diseases, today ... 2016 ended December 31, 2015. ... objectives set forth in our last quarterly call, ... reinforce our long-term objective to establish the Aethlon ...
Breaking Medicine Technology: