Old enough to remember how Salt Tablets were included in every survival kit.

People with low blood pressure (myself) can eat more salt, it sharpens you up, takes away a bit of fog. Also, people should eat more salt in the summer when they sweat, and also should take salt with meat as the salt is necessary to form protein-digesting acids in the stomach where protein is digested.

Salt with carbs not as necessary, which is why potato chips, salted nuts, popcorn, pretzels, should be mostly summertime foods, and they used to be just that, for ball games and picnics.