Pearson BTEC National Applied Psychology: Book 2

Unit 3 Health psychology These strange structures might look like weird mushrooms, but they’re not. They are your own cells, doing the important job of keeping you alive. They are cells of your immune system, ghting off life-threatening bodily invaders like viruses. They usually do a great job. But not always, otherwise we wouldn’t get ill. Ever had a cold at exam time? How does stress affect your health? What does it do to your immune system? 8