We all face stressful situations throughout our lives, ranging from minor annoyances like traffic jams to more serious worries, such as a loved one's grave illness. No matter what the cause, stress floods your body with hormones. Your heart pounds, your breathing speeds up, and your muscles tense.
This so-called "stress response" is a normal reaction to threatening situations, honed in our prehistory to help us survive threats like an animal attack or a flood. Today, we rarely face these physical dangers, but challenging situations in daily life can set off the stress response. We can't avoid all sources of stress in our lives, nor would we want to. But we can develop healthier ways of responding to them.