I’m just going to take on where stuff left off. The hormone I want to talk you about is called melatonin. The synthesis is in the Pineal Gland, which is very small. It is the size of a pea in your brain. The corpus is the seat of the soul, and it is where melatonin is made. And it has rhythm as well. And in the sense, it is the opposite of the cortisol. It peaks at night. We call it as the darkness hormone. In every species that we studied, melatonin occurs at night. And it is hormone that prepares you for the things that your species, does at night. So, of course, in humans we sleep, but animals, like rodents, they are awake. It’s hormone that is related to darkness behaviour.
Significantly focusing on the fact which is mentioned is melatonin and the pineal gland is a pea-sized gland located in brain. Additionally, it also denotes that melatonin is produced by the pineal gland in the brain when night falls. Considering the most substantial insights which are specified here, it can be concluded that melatonin is related to darkness behaviour, which help human fall asleep at night while keeping rodents awake.