 Yep we have to keep driving this point home. You are missing out on hundreds of benefits if you are not hydrating properly. A few of the dangers of Dehydration are covered here.-Nate Dehydration is what happens to your body when it loses more fluid than it takes in. Water is essential to life. It is the medium in which all the functions of our body take place. In fact, water makes up 45%-65% of our total body weight. About 62% of this water is stored in our cells. The remainder is in plasma, lymph, and other fluids. The amount of fluid in our body usually remains relatively stable. If, for some reason fluid output exceeds fluid intake it's no problem--if the imbalance is adjusted pretty quickly. It's when fluids aren't replaced that you can get in trouble and experience dehydration. If you do, the effects can be significant. Common symptoms of even mild dehydration include muscle weakness, decreased performance, reduced cardiac function during exercise, higher resting heart rate, decreased oxygen consumption and fatigue. It's normal for us to lose body fluids through perspiration, sweating, excretion and exhalation. Abnormal water loss occurs with prolonged vomiting or diarrhea, bleeding, burns and some medical conditions like diabetes. The best way to prevent dehydration is to drink water regularly. Typical needs are about 6 to 8 glasses of liquid a day, but individual needs vary based on the kinds of food you eat and whether or not you exercise. If you're exercising you need more water to replace fluids lost as your body regulates its internal thermometer through perspiration. Out and out sweating does not cool your body so the requirement for water on very hot days increases significantly. Physiologically it's smart to drink one or two glasses of water 10 to 20 minutes before exercising followed by an additional glass of water for every 20 minutes you work out. If you exercise in very humid conditions you need twice as much. Water with glucose and electrolytes or sports drinks with polymerized carbohydrates are popular fluid replacements for people who exercise for long periods of time. The polymerized drinks speed the replacement process while providing the carbohydrates for energy. Plain water remains the best fluid for hydrating the body.
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Showing posts with label dehydration. Show all posts
Showing posts with label dehydration. Show all posts
Monday, May 9, 2016
Dehydration
Tuesday, January 3, 2012
Asthma and Dehydration don't mix!
Dehydration Worsens Exercise-Induced Asthma
NEW YORK (Reuters Health)--With the return of hot weather, a word of warning to people with asthma: Dehydration can cause bronchospasm, a constriction or "tightening" of lung airways. And dehydration can make asthma brought on by exercise worse, report researchers.Lead investigator Paula Maxwell of the University of Buffalo, New York, and colleagues compared airway reactivity after 6 minutes of high-intensity exercise in eight young adults with exercise-induced asthma and eight without the condition. Subjects first exercised when fully hydrated and again after 24 hours of voluntary water deprivation.
Hydration status had no effect on lung function in normal subjects, but the study showed that in individuals with exercise-induced asthma, dehydration resulted in a significant decrease in FEV1, a measure of lung function based on the amount of air blown out in one second.
This decline in lung function was evident both before and after exercise in these individuals, the research team reported Friday at the American College of Sports Medicine meeting in Seattle, Washington.
The investigators also noted that the rate of decline in lung function was the same in asthmatics whether they were hydrated or dehydrated, but when dehydrated, asthmatics start out with worse lung function than usual, and therefore experience more breathing problems than when they have enough water on board.
"Asthmatics are more sensitive than non-asthmatics to dehydration, but we need to investigate this condition further to determine how it affects (lung) function," said study co-author Dr. Frank Cerny, associate professor and chair of the University of Buffalo department of physical therapy, exercise, and nutrition sciences.
"The message continues to be, 'Drink fluids whenever you get the chance,'" he added. "If you have asthma, dehydration may make it worse, particularly during exercise."
Source: Journal of the American Geriatrics Society 1999;47:639-646, 755-756.
Tonight on US Sports Radio Its DeMatha High School Basketball: The 10th Ranked Stags take on the Cadets of St. John's in a big conference match-up go www.ussportsentertainment.com to listen live tonight starting at 7:05pm EST
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