10000 years ago men eat in a very different way from today.
Primitives had a diet containing a sodium/potassium ratio of 1: 16, while nowadays it is of 1: 0.7. In this age men eat many raw food, rich of anti-oxidative substances, vitamins and vegetal fibers; furthermore it was very low on fats.
Modern diet is full of sodium, fats, elaborated, cooked and conserved food. On the contrary in poor of vitamins and vegetables fibers. This wrong diet come out with health diseases such as obesity, tumors, diabetes, hypertension constipation.
An overdose of sodium leads to fluids accumulation, weight increase, vasoconstriction, energy consumption.