Ivan Pavlov

Perfect as the wing of a bird may be, it will never enable the bird…

It goes without saying that the desire to accomplish the task with more confidence, to…

Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that…

But man has still another powerful resource: natural science with its strictly objective methods…

From the described experiment it is clear that the mere act of eating, the food…

It has long been known for sure that the sight of tasty food makes a…

Appetite, craving for food, is a constant and powerful stimulator of the gastric glands…