I am frequently asked, particularly by visitors from the great North land, about hydration – this is a vital concern in tropical Mexico. Every pharmacy here in La Paz distributes free of charge “suero”, which is the standard W.H.O. recipe of 6 teaspoons sugar and half a teaspoon of salt. Added to 1 lt water you will get an Isotonic drink – sports drink designed to help athletes rehydrate when fluids are depleted after training or competition. Electrolyte replacement promotes proper rehydration, which is important in delaying the onset of fatigue during exercise. As the primary fuel utilized by exercising muscle, carbohydrates are important in maintaining exercise and sport performance. This mixture was adopted by W.H.O. because it works and the ingredients are available nearly everywhere, NOT because it is necessarily the best. If I had to choose one for freedivers, it would definitely be the juice of Continued…