Delicious scrambled eggsPhoto:ShutterstockEggs owe their invigorating effect to a special substance they contain, which stimulates the production of orexin, or hypocretin, in the brain. Insufficient amounts of these compounds, in turn, lead to the development of narcolepsy, as well as the appearance of unwanted kilograms.In addition, chicken eggs are rich in very important amino acids and proteins, zinc, manganese, calcium, iron, as well as vitamins A, B and E. All this has a positive effect on the process of hematopoiesis, protects against the negative impact of the environment and prevents cataracts.Another group of scientists, in turn, found out that, as well as warm milk and a cheese sandwich.