We all feel stress at one time or another. In fact, stress is a necessary physiological reaction that helps protect our bodies from danger. When the body senses a threat, the nervous system releases a flood of stress-related hormones aimed at equipping the body to deal with the threat. The heart will beat faster, muscles will tighten, blood pressure will rise, and senses will become sharper. In emergency situations, the fight-or-flight response could even save your life. But chronic, unmanageable stress can lead to a host of physical and emotional problems, including insomnia, depression, sexual dysfunction and heart trouble. Find out more about stress, who in our society deals with it most and how you can fight unwanted stress.