Many factors, both internal and environmental, can cause chapped, dry lips. Most of the time, dry lips are a nuisance but not a sign of a significant health problem. Occasionally, they can be symptomatic of illness. Treating dry lips depends on the cause, though in most cases, simple lifestyle changes or additions can solve the issue.
One cause of dry lips is dehydration. The widely accepted idea that everyone should drink eight glasses of water a day is inaccurate. Instead, individuals should consume one half to one ounce of water for every pound of weight (for example: 160 lbs = 40 to 80 oz of water.) Athletes and pregnant women may require more. Dehydration can also occur from external factors such as a dry room or regular exposure to windy outdoor conditions.
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