Salt Sensitivity Lowered by Exercise
All people who exercise frequently and hard need to take in extra salt. During World War II, Dr. James Gamble of Harvard Medical School showed that the only mineral that exercisers need in large quantities is salt. If heavy exercisers don't take in enough salt, they will eventually run low on salt and suffer fatigue, muscle aches and cramps, and be at increased risk for injuring themselves.
The Minnesota study measured blood pressure in people when they followed a high-salt diet and again when they went on a low-salt diet. The salt-sensitive people who developed high blood pressure on a high-salt diet were started on an exercise program. After six months, many of these people did not develop high blood pressure when they again ate a high-salt diet. This shows that regular exercise can control high blood pressure caused by a high-salt diet. Previous studies show that it is very bad advice to tell most exercisers to restrict their intake of salt. This new study shows that many people who develop high blood pressure from a high salt diet when they are sedentary, will not develop high blood pressure on the same diet when they exercise.
Related Tags: blood pressure, heart, high blood pressure, salt, salt sensitivity
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Dr. Gabe Mirkin has been a radio talk show host for 25 years and practicing physician for more than 40 years; he is board certified in four specialties, including sports medicine. Read or listen to hundreds of his fitness and health reports -- and the FREE Good Food Book -- at http://www.DrMirkin.com
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