because warming the blood effectively warms the whole body.

The air you breathe, the sun that warms you, the computer you're using right now to distract yourself from the stuff you should be doing.

The trapped heat warms the greenhouse.

The trapped heat warms the greenhouse.

because warming the blood effectively warms the whole body.

The first water cooling method is to run cool water over or through the hot object so the water warms up and takes away the heat, and therefore, cools the object down.

If you drink cold water, you benefit from direct heat transfer while your body warms the water up to body temperature, and then you benefit from evaporative cooling when the water evaporates as sweat. 

And what worries scientists is that as the climate warms, more and more of the permafrost

You know, it just warms up the cell.

orbiting a star which warms us,

or even faster, stick your tongue up against the roof of your mouth. As soon as it warms

but as it nears the Sun the ice at the surface warms and changes its structure, forming that harder crust.