"Don't sweat the small stuff... and it's all small stuff."
Richard Carlson, Ph.D.
So often, we worry about stress, speculate about stress, and wish it would go away. Seldom do we stop to ask what it is. Little wonder. For stress is a complicated thing to define. The word originates from the language of engineering, which explains “any force that causes an object to change.” In engineering, the specific change caused by stress is known as strain, and there are four possible kinds: torsion, tensile, compression, and shearing. In human terms, the strain is your body’s response to physical, chemical, emotional, or spiritual forces, asking in some way that you adapt to them. Not all stress is bad; some define you and make you stronger. But within the world today there are so many unknown stressors afflicting our bodies that we have no chance of adapting quickly enough, especially when we feel our health is compromised through daily activities. Stop and listen to your stress and help your body overcome what ails you.
The human body responds to stressors by activating the nervous system and specific hormones. The hypothalamus signals the adrenal glands to produce more of the hormones adrenaline and cortisol and release them into the bloodstream. These hormones speed up heart rate, breathing rate, blood pressure, and metabolism. Blood vessels open wider to let more blood flow to large muscle groups, putting our muscles on alert. Pupils dilate to improve vision. The liver releases some of its stored glucose to increase the body's energy. And sweat is produced to cool the body. All of these physical changes prepare a person to react quickly and effectively to handle the pressure of the moment.
This natural reaction is known as the stress response. Working properly, the body's stress response enhances a person's ability to perform well under pressure. But the stress response can also cause problems when it overreacts or fails to turn off and reset itself properly. Stress reduction devices using biofeedback are today’s cutting-edge tools for reducing these stressors and retraining your body.
The stress response (also called the fight or flight response) is critical during emergency situations, such as when a driver has to slam on the brakes to avoid an accident. It can also be activated in a milder form at a time when the pressure's on but there's no actual danger - like stepping up to take the foul shot that could win the game, getting ready to go to a big dance, or sitting down for a final exam. A little of this stress can help keep you on your toes, ready to rise to a challenge. And the nervous system quickly returns to its normal state, standing by to respond again when needed.
But stress doesn't always happen in response to things that are immediate or that are over quickly. Ongoing or long-term events, like coping with a divorce or moving to a new neighborhood or school, can cause stress, too. Long-term stressful situations can produce a lasting, low-level stress that's hard on people. The nervous system senses continued pressure and may remain slightly activated, continuing to pump out extra stress hormones over an extended period. This can wear out the body's reserves, leave a person feeling depleted or overwhelmed, weaken the body's immune system, and cause other problems such as weight gain and premature aging.
Although just enough stress can be a good thing, stress overload is a different story - too much stress isn't good for anyone. For example, feeling a little stress about a meeting that's coming up can motivate you to study hard. But stressing out too much over the meeting can make it hard to concentrate on the material you need to learn.
Pressures that are too intense or last too long, or troubles that are shouldered alone, can cause people to feel stress overload. Here are some of the things that can overwhelm the body's ability to cope if they continue for a long time:
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