Dear Dr. Mirkin:
Do all people develop high blood pressure when they take in too much salt?
No! Only some people are salt sensitive and develop high blood pressure when they take in too much salt.
In one study it was revealed that people who exercise are far less likely to suffer high blood pressure from eating food with excess salt intake (presented March 23 at the American Heart Association’s Nutrition, Physical Activity and Metabolism/Cardiovascular Disease Epidemiology and Prevention 2011 Scientific Sessions).
Exercisers were 38% less likely to be salt sensitive
In this study, 1,900 Chinese adults were placed on 3,000 milligrams of salt a day and then 18,000 (ten times the recommended daily allowance for salt).
Those whose blood pressure increased more than five percent when changed from the lower to higher salt are salt sensitive.
Those who exercised the most had a 38 percent lower risk of being salt sensitive than those who exercised the least.
Regular exercise increases your need for salt because you lose salt though sweat. Most people should not add a lot of extra salt to their food. And all healthy people should think about getting more exercise.
A practicing physician for more than 40 years and a radio talk show host for 25, Dr. Mirkin is a graduate of Harvard University and Baylor University College of Medicine. He is one of a very few doctors board-certified in four specialties: Sports Medicine, Allergy and Immunology, Pediatrics and Pediatric Immunology.
Dr. Mirkin's latest book is The Healthy Heart Miracle, published by HarperCollins. His daily short features on fitness have been heard on CBS Radio News stations since the 1970's.
He has written 16 books including The Sportsmedicine Book, the best-selling book on the subject that has been translated into many languages. Dr. Mirkin did his residency at the Massachusetts General Hospital and over the years he has served as a Teaching Fellow at Johns Hopkins Medical School, Assistant Professor at the University of Maryland, and Associate Clinical Professor in Pediatrics at the Georgetown University School of Medicine.
Read more at www.drmirkin.com.
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