Did you know that every night, as you sleep, your brain dumps a whole bunch of waste into your neck? Your brain essentially washes itself as you sleep through something called the lymphatic system. If we don't circulate this waste out of our necks, it can build up, which is bad news for our brains.Let's Understand Lymphatic System FirstThe lymphatic system is a crucial part of the body's immune system, responsible for removing toxins, waste, and other unwanted materials. It consists of a network of tissues, vessels, and organs that work together to transport lymph, a fluid containing infection-fighting white blood cells. The lymphatic system also plays a key role in maintaining fluid balance and supporting overall immunity.Clinical trials are showing that when they perform microsurgery in people's necks to help the brain drain better, they drastically improve symptoms of Alzheimer's and dementia. People are regaining their memory and cognitive abilities. Researchers believe this is effective because this drainage is linked to the removal of amyloid plaques from the brain, which are associated with Alzheimer's disease.How Can You Protect Your Brain?If you want to protect your memory and your brain's other abilities as you age, improving the function of this drainage system is key. Currently, my favorite way to do this is through rebounding. The muscle contractions that occur while jumping up and down help improve the flow of your lymphatic system.If you're not a jumper, then you can exercise. This is why morning movement is so important. Besides helping you get rid of the brain waste, regular exercise is linked with a healthier and longer lifespan. Another key factor is good-quality sleep. The recommended time period for an individual to sleep is 6-8 hours. This is when your brain washes itself, so make sure you're giving it the opportunity to do so.