So here's my theory, and this is such crap science, I don't have to tell you. It's science without microscopes, blood tests, or reality.
Maggie StiefvaterFor a second, he was still, blinking. Then he shook off all the blankets and coats so that his arms were free and he wrapped them around me as tightly as he could. I felt him shuddering, shuddering against me as he buried his face in my hair. I said, uselessly, "Sam, don't go." Sam cupped my face in his hands and looked me in the eyes. His eyes were yellow, sad, wolf, mine. "These stay the same. Remember that when you look at me. Remember it's me. Please."" โ Grace and Sam (Shiver)
Maggie StiefvaterEvery third step I ran, my breath exploded out of me all in a rush. One step to suck in another cold lungful. One step to let it excape. One step of not breathing.
Maggie Stiefvater