Our sensory system has several components. Mainly receptors that become activated by changes in the environment.
The magnitude of sensation is related to the number of receptors activated. And the greater the stimulus, the more receptors become activated and the longer the effect. Non-painful stimuli cause what we call sensory adaptation, so you don't constantly feel your socks, for example. Whereas painful stimuli cause potentiation or sensitization, meaning the pain gets worse as it goes on
We're going to uncover what sleep is and explore the stages of sleep and the corresponding electrical activity in the brain. We will then dive into the intricacies of the neurobiology of sleep, what sleep does, what sleep deprivation leads to, and finally, what you can do to improve your sleep.
Meditation and its effects on the brain. Meditation is a popular term that has infiltrated every culture. Originally a practice started thousands of years ago in eastern cultures and the Buddhist religion, it was picked up by other world religions. But today, it's a secular practice.
We will weave our way through the history of nutrition research, learn some primers on nutrition and digestion, and then discuss how poor nutrition leads to disease in the body and the brain specifically. We'll then wrap up with a look at different diets that can help reverse this.