1. Healthy nutrition.

Healthy nutrition is the key to a healthy life. If you want to keep a clear mind in old age, start dieting. Try to eliminate fast food, trans fats and foods high in sugar from your diet. Such food not only harms the figure, but also negatively affects the intellect. A healthy diet will help maintain clarity of mind. According to research, fried and fatty foods (hot dogs, french fries, burgers and other fast food) destroy the nerve cells in the brain that are responsible for cognitive abilities. This result leads to the consumption of foods high in sugar and salt. It is recommended to eat red fish to improve memory, as it contains omega-3 and omega-6 acids and many other useful trace elements. It is also important to eat vegetables and fruits rich in antioxidants (tomatoes, broccoli, guava, watermelon, carrots) – they help slow down the aging process.

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1. Lack of oxygen.

The brain cannot function without oxygen. None of the body’s systems can function without oxygen, but the brain is particularly sensitive to lack of oxygen. The most common cause of daytime sleepiness is prolonged stay indoors. Often, from October to April, the windows in the house almost do not open. In this case, oxygen starvation will become chronic.

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1. Plain water.

Water provides the brain with energy more efficiently than other fluids, activates thinking and stimulates memory processes. Adequate water intake promotes quick thinking and concentration. Dehydration reduces brain activity. When the body is only 1% dehydrated, cognitive function is reduced by 5%. Prolonged dehydration leads to a decrease in the size and mass of brain cells. It is most common in the elderly, many of whom have a tendency to chronic dehydration for many years.

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