What to eat at each meal to keep memory and brain functioning

Many people realize the harm the alcohol can do to our brain, but only a few know the danger of a lunch that consists of three or
more dishes containing carbohydrates: bread, potatoes or pasta, sweet desserts. A group of psychologists discovered that similar
combinations of products make women sleepy and men weak. After such a lunch, it takes about four hours to fully restore persons'
ability to concentrate. You've probably heard the joke: "Up until lunch, a person at work fights hunger and after lunch, sleep."
Sleepiness may not be the result of a bad night of sleep. Sleepiness is often caused by an incorrectly chosen combination of food
that reduces the activity of the brain.

What should you eat for lunch then? Lunch should contain products with a high amount of protein. Poultry or fish rich in protein
fill the blood of a person with amino acids, including tyrosine.

Let me also share a few words about the protective barrier of nervous cells of the brain. Each cell of the organism has an external
membrane - a protective cover which not only separates the cell from other parts of the organism, but also serves as the transmitter
of various substances. Through the membrane, the active withdrawal of harmful by-products of vital cellular activity is carried out.
Many cells of the brain possess a double membrane; not every chemical substance can penetrate into the nervous system. Physicians,
who are well-informed about these processes, invented a special way for the introduction of medicinal substances directly into the
nervous system - the subarachnoid way. Some substances enter into the brain only by means of their direct injection into nervous
cells. What is it that prevents those substances from reaching the nervous system? It is the double protective membrane that does
it. The mechanism that protects the brain from chemical substances is called a "blood-brain barrier."

Tyrosine easily flows through this protective filter in the brain and turns into chemical elements which help to increase brain
activity - dopamine and norepinephrine.

When you suddenly feel confused, helpless, or depressed, it should serve as an indicator of deficiency of these elements in your
brain.

Meat, fish, an egg yolk, porridge, peanuts, and soy products contain a nutritious element called choline, which also freely
penetrates through the blood-brain barrier. Choline is the chemical predecessor of the neurotransmitter of the brain, acetylcholine,
which plays an important role in the development of memory.
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