The picture shows the full process that the body goes through when you are both hot and cold.
This passage talks about how it controls hormones and operates in order to maintain homeostasis.
This article gives information about how hypothalamus works. It also gives analogies of how the process works and the body reacts when it is exposed to too much heat.
This article shows what the body is responsible for and gives examples of what hypothalamus helps stimulate. It also informs you about the functions it is involved in such as the autonomic nervous system. Lastly it tells you about the primary hormones involved such as anti-diuretic hormone.
This diagram shows the basic process that the body uses to warm up or cool off the body. This process happens when the body's external environment changes and then effects the internal environment. These are just the basic things that happen instead of going in deepth.