Caffeine 101
The video I watched was about influence of caffeine on our body. Everybody knows that caffeine stimulate our nervous system, but in this short video they showed clear animation, what the compound does in our body. Caffein attached to adenosine receptors in the brain whereby adenosine molecules, which are responsible for slowing down central nervous system before we sleep, are blocked and we don't feel tired. In my opinion "Caffeine 101" was well-prepared video, because it took only 3 minutes to watch it and I learn something new.