What Makes Me Sleep?
The Hypothalamus is the part of your brain that tells you when to sleep, when to eat and when to drink. It acts as your “internal clock” and controls your body’s schedule. It also acts as a thermostat and controls your internal temperature, for example, if you get too hot, it sends a message to expand the capillaries in your skin that allows your blood to be cooled faster. This cools the whole body as it impacts the flow of blood back to the heart.
The nature link of the 24-hour clock consequently is not only related to how our day and night cycle, it is how the body functions, and how the Hypothalamus sets up to control the different organ functions, such as speeding up or down your digestive functions. The interesting thing is your hunger alerts do not relate to your stomach, it is a call from the brain that it needs nutrients.
What is most fascinating is it also plays a role in our emotions. When a person yells at us, all visual and auditory sensors receive messages, the sounds are transferred from the Thalamus to the Cortex to make sense of the experience. The message then goes to the Hypothalamus that decides how our body will react. This is why when someone yelling at us makes us angry, the Hypothalamus instructs the blood pressure to rise, sweat and impacts the beating rate of the heart.