Hibernation means that the metabolism and temperature drop much lower than during sleep (when the metabolic rate is lowered with only about 5-10 percent), it lasts longer, it’s actually closer to a coma.įurthermore, we sleep almost the same amount of time whether we’ve spent the day “hauling bricks or sitting in our pyjamas watching cartoons”. This is proven by the fact that sleep has been observed in hibernating animals. Once your brain and body adapt to a certain caloric intake, it can be very hard to reduce it. The opposite is also true: even if the stomach has too much food, the brain can decide the benefit of the desert overcomes this impediment. If you have regular eating hours, the brain tells the stomach it’s time to eat and thus the stomach creates appetite, even if it doesn’t detect an actual lack of food. Then, how come is it so hard for obese people to lose weight? Also, if you have more fat stores, you secrete more appetite-suppressing hormone (leptin). Your stomach creates hunger hormones when it detects lack of nutrients. The stomach is saying no but the brain is saying ‘let’s go’ Poison is the only thing that can affect your inner workings so bad so the brain thinks he is poisoned and throws up. The image of the world passing by can also mean it is moving, not you. But when you are travelling by car or plane, you only get part of these signals (the shifting fluids in your ear). Human motion (walking, running, crawling) produces a specific set of signals (up-down rocking motion, general velocity and the external forces such as the movement of air passing you and your shifting internal fluids that this produces).
One theory is that the brain interprets the situation as poisoning. Why does movement sometimes make us throw up? Sitting too long in airplanes can even be fatal, due to deep vein thrombosis. Our bodies are ideally suited to regular ambulation. This may explain why an unconscious person can still wander about. There are nerve clusters in our spine that control our locomotion without any conscious involvement. In this conversation we talk about Evolution of the brain, motion sickness, sleep disorders, Egotistic nature of the brains, attention, personalities, and mental illness.Is anger really bad? How do we become smarter? Why you can’t trust group decisions? Understanding how the brain works will make you more able to use it in the direction you want.ġ. Dean is currently an honorary research associate at Cardiff Psychology School. He was previously employed as a psychiatry tutor and lecturer at the Cardiff University Centre for Medical Education. Dr Dean Burnett is a neuroscientist, lecturer, author, blogger, podcaster, science communicator and a comedian. This is a conversation with Dean Burnett.
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