What is stress?

Stress is a normal physical response to events that make you feel threatened or upset your balance in some way. When you sense danger—whether it’s real or imagined—the body's defenses kick into high gear in a rapid, automatic process known as the “fight-or-flight-or-freeze” reaction, or the stress response.

Modern life is full of hassles, deadlines, frustrations, and demands. For many people, stress is so commonplace that it has become a way of life. Stress isn’t always bad. In small doses, it can help you perform under pressure and motivate you to do your best. But when you’re constantly running in emergency mode, your mind and body pay the price. You can protect yourself by recognizing the signs and symptoms of stress and taking steps to reduce its harmful effects.

The Body’s Stress Response

When you perceive a threat, your nervous system responds by releasing a flood of stress hormones, including adrenaline and cortisol. These hormones rouse the body for emergency action.
Your heart pounds faster, muscles tighten, blood pressure rises, breath quickens, and your senses become sharper. These physical changes increase your strength and stamina, speed your reaction time, and enhance your focus—preparing you to either fight or flee from the danger at hand.

The Body's Stress Response

Signs and symptoms of stress overload

Stress Warning Signs and Symptoms
Cognitive Symptoms	Emotional Symptoms
Memory problems Inability to concentrate Poor judgment Seeing only the negative Anxious or racing thoughts Constant worrying	Moodiness Irritability or short temper Agitation, inability to relax Feeling overwhelmed Sense of loneliness and isolation Depression or general unhappiness
Physical Symptoms	Behavioral Symptoms
Aches and pains Diarrhea or constipation Nausea, dizziness Chest pain, rapid heartbeat Loss of sex drive Frequent colds	Eating more or less Sleeping too much or too little Isolating yourself from others Procrastinating or neglecting responsibilities Using alcohol, cigarettes, or drugs to relax Nervous habits (e.g. nail biting, pacing)

Causes of stress

The situations and pressures that cause stress are known as stressors. We usually think of stressors as being negative, such as an exhausting work schedule or a rocky relationship. However, anything that puts high demands on you or forces you to adjust can be stressful. This includes positive events such as getting married, buying a house, going to college, or receiving a promotion.

Common external causes of stress

Major life changes Work or school Relationship difficulties

Financial problems Being too busy Children and family

Common internal causes of stress

Chronic worry Pessimism Negative self-talk

Unrealistic expectations/Perfectionism Rigid thinking, lack of flexibility All-or-nothing attitude

Learn how to manage stress

Remember the four As: avoid, alter, adapt, or accept.

• Avoid unnecessary stress. Not all stress can be avoided, but by learning how to say no, distinguishing between “shoulds” and “musts” on your to-do list, and steering clear of people or situations that stress you out, you can eliminate many daily stressors.
• Alter the situation. If you can’t avoid a stressful situation, try to alter it. Be more assertive and deal with problems head on. Instead of bottling up your feelings and increasing your stress, respectfully let others know about your concerns. Or be more willing to compromise and try meeting others halfway on an issue.
• Adapt to the stressor. When you can’t change the stressor, try changing yourself. Reframe problems or focus on the positive things in your life. If a task at work has you stressed, focus on the aspects of your job you do enjoy. And always look at the big picture: is this really something worth getting upset about?
• Accept the things you can’t change. There will always be stressors in life that you can’t do anything about. Learn to accept the inevitable rather than rail against a situation and making it even more stressful. Look for the upside in a situation—even the most stressful circumstances can be an opportunity for learning or personal growth. Learn to accept that no one, including you, is ever perfect. 

You can also better cope with the symptoms of stress by strengthening your physical health.

• Set aside relaxation time. 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 stress response.
• Exercise regularly. Physical activity plays a key role in reducing and preventing the effects of stress. Nothing beats aerobic exercise for releasing pent-up stress and tension.
• Eat a healthy diet. Well-nourished bodies are better prepared to cope with stress. Start your day with a healthy breakfast, reduce your caffeine and sugar intake, and cut back on alcohol and nicotine.
• Get plenty of sleep. Feeling tired can increase stress by causing you to think irrationally. Keep your cool by getting a good night’s sleep.