The act of laughing helps your body fight stress in a number of ways. Take up a relaxation practice. Relaxation techniques such as yoga, meditation, and deep breathing activate the body's relaxation response, a state of restfulness that is the opposite of the fight or flight or mobilization stress response.
This book will give you:
Stress Management Techniques: An Overview Of Stress Management
Why Is It Important To Manage Stress: Stress Basics
How To De-Stress Yourself Instantly: How To Manage And Reduce Stress