Our understanding of chemical changes have made a bigger impact on human lives than our understanding of physical changes. A piece of evidence that supports this is in the video called Your Brain on Coffee it says “Adenosine slows down your brain, but because there is caffeine in coffee it ‘replaces’ the adenosine so you don’t feel tired.” This shows that… For example, in the video How Does Anesthesia Work it states that “Inhalational anesthesia acts on the entire nervous system and brain”. REASONING. In the sleep deprivation video it says adenosine builds up and causes tiredness. It also states that “Sleep deprivation could result in unbalancement in hormones, sickness and illness, and sometimes even death.” REASONING. In How the Food You
