“Here's how it works. Your immune system protects you from all kinds of nasty bugs and helps repair tissue that has been… — Jed Diamond Copy Share Image
“Just as we possess a potent physical immune system that protects us from threats to our physical well-being, so do we possess… — Timothy D. Wilson Copy Share Image
“Just as there are several components of the immune system, each of which protects us against particular kinds of invasions, there are… — Randolph M. Nesse Copy Share Image
