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THE IMPACT CAFFEINE ON THE BODY

The action mechanism of caffeine, whether positive or negative influence on the organism, what is effect on physical activity, and a couple of interesting questions, we will discuss in the following text . Caffeine is a natural alkaloid, which is derived from coffee beans, tea leaves and from the cocoa grain. It is adds in artificial beverages like Coca Cola. He is a natural psyhostimulant and they have affects at the central nervous system.

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The positive side of caffeine

% of nutrients in a cup of coffee: Vitamin B12 11%, 6% Vitamin B5, Vitamin B1 2%, Vitamin B3 2%, 3% Magnesium, Phosphorus 1%. Coffee contains small amounts of vitamins but is a powerful antioxidant.

It is not clear why caffeine has ergogenic effects obvious, and if there is a hypothesis that it stimulates the sympathetic nervous system and increases the consumption of fatty acids, thereby sparing limited glycogen stores in the muscles and liver. As a central nervous system stimulant, caffeine can reduce the feeling of fatigue, enabling the extended duration of action and improving athletic performance. Finally, caffeine plays a significant role in the release of calcium ions from the sarcoplasmic reticulum in muscle cells. This in turn can lead to stimulation of a stronger muscle contraction, especially during anaerobic sports and sports power. However, recent studies suggest that if you increase the intake of free fatty acids and caffeine intake at the same time, there will be an increase in their oxidation or saving glycogen. Competitive advantage seems to be primarily related to the role of caffeine to stimulate the central nervous system. During endurance sports, caffeine is proven to reduce the feeling of fatigue, increases concentration and attention, while during strength training, or short bursts of activity, caffeine acts as a facilitator contraction of skeletal muscle.

The negative side of caffeine

Users may become dependent on caffeine, with to much consumption. While is low and moderate, it doses generally safe. Those who abruptly stop consuming caffeine, and before they were addicts, start to have a problems with headaches and mental fatigue. This condition lasts for several days while the body is start to use to it.

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Intake a lot of caffeine, causes increased nervousness and sleep disorders. This has the consequence that, due to the introduction of caffeine to reduce daily fatigue leads to insomnia. Caffeine affects negatively interact with some drugs. It increases blood sugar levels, making a real problem for people who have Type 2 diabetes and insulin control. People who have high blood pressure and diabetes should avoid caffeine. Studies say that women who drank more than 3 cups of coffee (300 mg caffeine) a day, leading to loss of bone mass in the spine, during postmenopause. A lack of calcium in the bones. Caffeine can also lead to stomach problems due to heartburn and stomach acid.

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