to focus, irritability, insomnia, unrest and nervousness.. There is little evidence concerning the effects Uniform of caffeine Michigan Wolverines Merchandise in doses typical of one cup of tea. The present study investigated the effect of 60 mg caffeine,. The most important neurobiological effects of caffeine

is its activity as an antagonist of the adenosine receptor. Recently, a variety of evidence has. It is a potent and quick-acting drug which produces an effect similar to the stress response in our bodies. Caffeine affects each person differently,.

The amount of caffeine in the blood reaching the brain determines the severity of its effects on the body. Caffeine is metabolized by the liver and.