Окислительный стресс: двоякое влияние свободных радикалов на организм

It's no secret that our body is constantly undergoing oxidative processes involving oxygen and the release of energy. In this case, free radicals are formed – molecules without one electron.

Oxidative stress — This is a condition in which there are too many free radicals in the body. Oxidants have both positive and negative effects on our body systems.

Primary oxidants protect us from bacteria, viruses and cancer cells. However, secondary radicals accelerate the aging process and are the cause of many diseases, and the long-term influence of "bad" radicals is fraught with the development of oxidative stress.

Read on estet-portal.com about the effect of free radicals on the body, as well as factors that cause oxidative stress and substances that can reduce the negative effects of oxidants.

Mechanisms: where do good and bad radicals come from in the body

Free radicals are inferior particles. They react with the nearest molecule and tear off the missing electron from it. And the affected molecule becomes a free radical with all the ensuing consequences. An avalanche-like reaction develops, which is capable of destroying the cells and tissues of a living organism.

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Primary or useful radicals are formed with the participation of certain enzyme systems.
Primary include superoxide and nitrogen monoxide, which in the following reactions are converted into hydrogen peroxide, hypochlorite and lipid hydroperoxides. Under the action of inons of metals with variable valence, secondary free radicals (radicals of lipids and hydroxyl) are formed from these substances, which have a destructive effect on cell membranes.

Along with these oxidants, foreign or tertiary radicals can have a damaging effect. They appear under the influence of ionizing and ultraviolet radiation, as well as xenobiotics that have entered the human body.
Stress factors: what influences the occurrence of serious diseases
Oxidative stress is often associated with chronic fatigue syndrome. It is also the cause of many serious diseases and conditions of the body. Oxidative stress precedes hypertension, myocardial infarction, stroke, atherosclerosis, type II diabetes, Alzheimer's disease, infertility, and cancer.

Constant exposure to "bad" radicals can also cause autoimmune pathologies, chronic inflammatory processes and accelerated aging.

Stress factors include:

•    Unbalanced nutrition;

•    passion for fast food, canned food;

•    lack of physical activity;

•    bad habits;

•    constant stress;

•    chronic intoxication of the body;

•    drug abuse;

•    bacterial and viral infections;

•    exposure radiation;

•    environmental pollution.

In general, unhealthy lifestyles, physical inactivity, reckless use of medications and excessive sun exposure increase the risk of developing oxidative stress.

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Substances-rescuers from oxidative stress: where to find them
Antioxidants – useful components that prevent the development of premature aging and various diseases. The mechanism of action of antioxidants is to reduce the rate of oxidation and the formation of inactive radicals.

The most popular antioxidants include: vitamins A, C, E, B; polyphenols, carotenoids, selenium, phospholipids, catechins, anthocyanins, hesperidin, estrogens, hormone melatonin and others.

Many antioxidants can be obtained from foods such as:

My default image1.    berries;

2.    nuts;

3.    green tea;

4.    broccoli;

5.    grapefruit;

6.    grapes and their seeds;

7.    ginger;

8.    prunes, raisins;

9.    olive oil;

10.    coffee;

11.     red wine.

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Of course, this is not the whole list of possible antioxidants, but by regularly using even these components in your diet, you can prevent oxidative stress.

A cup of coffee in the morning, vegetable salad with olive oil for lunch, fruit and a handful of nuts for dessert – your body will be ready to deal with constant oxidative stress.Thank you for staying with estet-portal.com. Read other interesting articles in the "" section. You may also be interested in:
Olive oil – the secret of health, beauty and longevity



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