Coffee. Coffee is a refreshing drink but more than 2 cups of coffee a day will surely cause you cardiac and neurological problems. Coffee as well as tea has a diuretic (dehydrating) effect on the body. Its usefulness is questionable as in this attempt to convince us mostly the insistent ads. One thing is for sure - coffee has a reaction of pH 3 and sharply lowers the alkalinity of the body.
A book about the 50 most common diseases, how to treat them and how to avoid generally being sick.