drink hot tea
shivering warms the body up.
because your body is warm so it heats it up
Stretching is warming up. Therefore, it is OK to stretch if the weather is hot and body is already warm.
your body sweats to cool down and shivvers to stay warm
Throw yourself in a fire, it might get warm (Possibly).
Do exercises that will get your heart rate up.
because you are warm and kitty's like to be warm!!MEOW
Dry the skin, rubber alcohol in the skin, cover the body with warm blankets and of course stop and /or avoid the cause of the hypothermia. You can also give something hot to drink.
I will come and warm you up
Increase the body temperature.
by taking a cold shower every morning, after get up from the bed, the blood is going to warm it up the surface of our body and distributes the blood what ever it needed, and not stay in one place, and them you have the same temperature inside and outside of our body, preventing fever etc.
the general purpose of a warm up is to let the body know what is coming make sure to stretch a lot and run easy on the warm ups. but it will prevent you from injuring yourself to so always warm up!!