the heat of the bath causes blood to flow to the skin to remove the heat... the more blood to the skin the less for the organs including the brain. and when you stand up after lying down it causes something called orthostatic hypotension which decreases blood pressure as you stand... also caused by some medications (usually blood pressure meds)
Chat with our AI personalities
Because your muscles contract from the bath water. Therefore, causing you to gain body heat. You probably have a lot of body weight to go along with that, that's why.
It is one of the stages that help you get to sleep for example your most likely to be sleepy and tired after a hot bath the cooling down process's helps you to fall asleep. Hope this helped.