Bitter Truth About Chocolate

Try to google the word “chocolate” and soon you will get impression that the whole world is currently going bananas over the amazing health benefits of this delicious weakness.

CHOCOLATE ADDICTION

One author apparently deceived by pseudo-scientific studies on cocoa (chocolate’s key ingredient) wrote that, “After water, cocoa is the single healthiest substance you can put in your mouth. It can easily replace a number of psychiatric drugs for mood, plus it produces the same chemistry in the brain that occurs when we fall in love.” Read more

Caffeine Causing ‘Untimely Deaths’!

http://s2.dmcdn.net/Hrjue.jpgCaffeine is so dangerous that it should be regulated like alcohol and cigarettes,

warns leading expert

Caffeine Causing ‘Untimely Deaths’! Read more

Caffeine, Blood Flow, and the Brain

As adenosine is created in the brain, it binds to adenosine receptors. This binding causes drowsiness by slowing down nerve cell activity. In the brain, this also causes blood vessels to dilate to let more oxygen into that organ during sleep. To a nerve cell, caffeine looks like adenosine: Caffeine binds to the adenosine receptor. However, caffeine doesn’t slow down the cell’s activity like adenosine would. As a result, the cell can no longer identify adenosine because caffeine is taking up all the receptors that adenosine would normally bind to.

This video from How Stuff Works shows how caffeine tricks nerve cells into believing it is adenosine:

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