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CaffeineA lot of throng ofttimes wonder what caffeine is. When isolated in pure form, caffeine is a white crystalline powder that tastes very bitter. The chief descent of pure caffeine is the process of decaffeinating coffee or tea. Caffeine is utilise to provideboost energy or a experienceing of heightened alertness. It is often used to stay awake long-lasting and late into the night. Many bulk feel as though they cannot function in the morning without a cup of coffee to provide caffeine and the boost it gives them. Caffeine is an habit-forming drug. It operates using the same mechanisms that amphetamines, cocaine, and heroin use to stimulate the brain. Caffeine make are more mild than amphetamines, cocaine, and heroin, only when it is manipulating the same channels, and that is one of the things that gives caffeine its addictive qualities. If you feel like you have to have caffeine worka mean solar daylight and cannot live without it, then you are considered addicted to caffeine. Caffeine also increases dopamine levels in the same way that amphetamines do (heroine, and cocaine also operate dopamine levels by slowing down the rate of dopamine reuptake). dopamine is a neurotransmitter that, in certain parts of the brain, activates the pleasure center. Caffeines effects are obviously much lower than heroins, but it is the same mechanism. The long term problem with caffeine is the effect it has on sleep. The half life of caffeine in your eubstance is about 6 hours. That means that if you have a big cup of coffee with two hundred mg of caffeine in it at 300pm, by 900pm about 100 mg of that caffeine is still in your system. You allow still be able to fall asleep but your body is going to miss out on the benefits of deep sleep. The next day you are probably going to feel worse, so to make yourself feel better, you will need caffeine as soon as you labour up and out of bed. This cycle can start to continue day after day. This is why 90% of Americans c onsume caffeine everyday. Once you blend in the cycle, you have to keep taking the drug (home.howstuffworks.com). Caffeine raises epinephrin levels and heavy coffee consumption can lead to a domain of adrenal gland exhaustion where the adrenal glands are no longer able to adequately respond to stress by releasing profuse adrenaline. Adrenal insufficiency can then lead to a drove of other problems, including a weakened immune system response, anxiety and fright attacks.