Wake Up Call

When I wake up in the morning, I feel different than going to sleep at night. When I get out of bed, my arms and legs feel sore for not using them for awhile. It is also different in my room and outside. My room is warm at night, but it's freezing in the morning. When I go to sleep it is night and is quite dark outside. When I wake up is is morning and the sun is up. I also happen to have to go to the bathroom when I wake up. An organ system involved is the excretory system because it filters out cellular wastes, toxins and excess water or nutrients from the circulatory system. I think negative feedback loops work to make sure that the changes I experience do not become too extreme. Negative feedback balances different levels of things in your body. While positive feedback changes your body instantly.