This episode features responses to listeners' questions. It starts with the somewhat frequent dream of tooth issues. If you have them, make an appointment with a dentist.Other topics:Sleep allows for spinal fluid to clean out the brain. This connects with concerns dementia.The pattern of REM sleep and non-REM sleep involves keeping brain temperature in a certain range. REM sleep warms the brain.Cheese and dreamsConnection between anxiety and dreams/nightmaresWhat are lucid dreams? Have they been overly hyped?Do animals dream?