Stress sets off an alarm in the brain, which responds by preparing the
body for defensive action. The nervous system is aroused and hormones are
released to sharpen the senses, quicken the pulse, deepen respiration, and
tense the muscles. This response (sometimes called the fight or flight
response) is important because it helps us defend against threatening
situations. The response is preprogrammed biologically. Everyone responds in
much the same way, regardless of whether the stressful situation is at work
or home.
Short-lived or infrequent episodes of stress pose little risk. But when
stressful situations go unresolved, the body is kept in a constant state of
activation, which increases the rate of wear and tear to biological systems.
Ultimately, fatigue or damage results, and the ability of the body to repair
and defend itself can become seriously compromised. As a result, the risk of
injury or disease escalates.
In the past 20 years, many studies have looked at the relationship
between job stress and a variety of ailments. Mood and
sleep disturbances,
upset stomach and headache, and disturbed relationships with family and
friends are examples of stress-related problems that are quick to develop
and are commonly seen in these studies. These early signs of job stress are
usually easy to recognize. But the effects of job stress on chronic diseases
are more difficult to see because chronic diseases take a long time to
develop and can be influenced by many factors other than stress.
Nonetheless, evidence is rapidly accumulating to suggest that stress plays
an important role in several types of chronic health problems-especially
cardiovascular disease, musculoskeletal disorders, and psychological
disorders.
Early warning signs of job stress
Headache
Sleep disturbances
Difficulty in concentrating
Short temper
Upset stomach
Job dissatisfaction
Low morale
What the research tells us
Cardiovascular Disease
Many studies suggest that psychologically demanding jobs that allow
employees little control over the work process increase the risk of
cardiovascular disease.
Musculoskeletal Disorders
On the basis of research by NIOSH and many other organizations, it is
widely believed that job stress increases the risk for development of back
and upper- extremity musculoskeletal disorders.
Psychological Disorders
Several studies suggest that differences in rates of mental health
problems (such as depression and burnout) for various occupations are due
partly to differences in job stress levels. (Economic and lifestyle
differences between occupations may also contribute to some of these
problems.)
Workplace Injury
Although more study is needed, there is a growing concern that stressful
working conditions interfere with safe work practices and set the stage for
injuries at work.
Suicide, Cancer, Ulcers, and Impaired Immune Function
Some studies suggest a relationship between stressful working conditions
and these health problems. However, more research is needed before firm
conclusions can be drawn.
A pinched nerve can be caused of a variety of conditions, for example, carpal tunnel syndrome, herniated disc, sciatica, arthritis, spinal stenosis, trauma, and more. Common symptoms of a pinched nerve include pain, numbness, tingling, and weakness. Treatment of a pinched nerve depends on the cause of the pinched nerve.
Headaches can be divided into two categories: primary headaches and secondary headaches. Migraine headaches, tension headaches, and cluster headaches are considered primary headaches. Secondary headaches are caused by disease. Headache symptoms vary with the headache type. Over-the-counter pain relievers provide short-term relief for most headaches.
Dehydration is the excessive loss of body water. There are a number of causes of dehydration including heat exposure, prolonged vigorous exercise, and some diseases of the gastrointestinal tract. The best way to treat dehydration is to prevent it from occurring.
Stress occurs when forces from the outside world impinge on the individual. Stress is a normal part of life. However, over-stress, can be harmful. There is now speculation, as well as some evidence, that points to the abnormal stress responses as being involved in causing various diseases or conditions.
Depression is an illness that involves the body, mood, and thoughts and affects the way a person eats and sleeps, the way one feels about oneself, and the way one thinks about things. The principal types of depression are major depression, dysthymia, and bipolar disease (also called manic-depressive disease).
Alcoholism is a disease that includes alcohol craving and continued drinking despite repeated alcohol-related problems, such as losing a job or getting into trouble with the law.
The common cold (viral upper respiratory tract infection) is a contagious illness that may be caused by various viruses. Symptoms include a stuffy nose, headache, cough, sore throat, and maybe a fever. Antibiotics have no effect upon the common cold, and there is no evidence that zinc and vitamin C are effective treatments.
Carpal tunnel syndrome is a condition in which irritation of the wrist's median nerve causes tingling and numbness of the thumb, index, and the middle fingers. This condition is known as tarsal tunnel syndrome in the ankles and feet. Treatment of carpal tunnel syndrome depends on the severity of the symptoms and the nature of any disease that might be causing the symptoms.
The hepatitis B virus is a unique, coated DNA virus belonging to the Hepadnaviridae family of viruses. The course of the virus is determined primarily by the age at which the infection is acquired and the interaction between the virus and the body's immune system. Successful treatment is associated with a reduction in liver injury and fibrosis (scarring), a decreased likelihood of developing cirrhosis and its complications, including liver cancer, and a prolonged survival.
A tension headache is a headache previously thought to be caused by contraction of the muscles in the back of the neck, on the scalp, and sometimes in the jaw. The term tension-type headache is now preferred, reflecting the fact that research has shown that these headaches may not be related to muscle tension.
Drug addiction is a chronic disease that causes drug-seeking behavior and drug use despite negative consequences to the user and those around him. Though the initial decision to use drugs is voluntary, changes in the brain caused by repeated drug abuse can affect a person's self-control and ability to make the right decisions and increase the urge to take drugs. Drug abuse and addiction are preventable.
Hepatitis is most often viral, due to infection with one of the hepatitis viruses (A, B, C, D, E, F (not confirmed), and G) or another virus (such as those that cause infectious mononucleosis, cytomegalovirus disease). The main nonviral causes of hepatitis are alcohol and drugs. Many patients infected with hepatitis A, B, and C have few or no symptoms of illness. For those who do develop symptoms of viral hepatitis, the most common are flu- like symptoms including: loss of appetite, nausea, vomiting, fever, weakness, tiredness, and aching in the abdomen. Treatment of viral hepatitis is dependant on the type of hepatitis.
Heart disease (coronary artery disease) is caused by a buildup of cholesterol deposits in the coronary arteries. Risk factors for heart disease include smoking, high blood pressure, heredity, diabetes, peripheral artery disease, and obesity. Symptoms include chest pain and shortness of breath. There are a variety of tests used to diagnose coronary artery disease. Treatment includes life-style changes, medications, procedures, or surgery.
Dry eyes are caused by an imbalance in the tear-flow system of the eye, but also can be caused by the drying out of the tear film. This can be due to dry air created by air conditioning, heat, or other environmental conditions.
Mercury is a naturally occurring element found in water, soil, and the air. Mercury is also contained in some fish, some of the products we use in the home, school, or dentist. Information about sources of mercury exposure, potential health effects, symptoms of exposure, fish that may contain mercury, consumer products that contain mercury, and ways to reduce your exposure to mercury is important for the health of you, and your family.
Grief is the feeling one experiences after a loss (of a friendship, death of loved one, job). Complicated grief refers to grief that lasts for more than a year. Mourning describes the customs and rituals that help a bereaved individual make sense of their loss.
ADHD afflicts approximately 3 percent to 5 percent of school-age children and an estimated 60 percent of those maintain the disorder into adulthood. Symptoms of adult ADHD include chronic lateness, anxiety, low self esteem, employment problems, difficulty controlling anger, impulsiveness, poor organization skills, procrastination, chronic boredom among others.
Seasonal affective disorder is a type of depression that tends to occur as the days grow shorter in the fall and winter. Symptoms of seasonal affective disorder include tiredness, fatigue, depression, irritability, body aches, poor sleep and overeating.
Travelers' diarrhea is generally contracted by eating contaminated food or drinking contaminated water. Food is the primary source of travelers' diarrhea. Enterotoxigenic E. coli is the cause of up to 70% of all cases of travelers' diarrhea. There are five unique classes of E. coli that causes gastroenteritis. Other bacteria responsible for travelers' diarrhea include
Campylobacter, jejuni, shigella, and salmonella. Viruses such as rotavirus and Norwalk virus (norovirus) and giardia lamblia a parasite may cause travelers' diarrhea. Prevention is careful eating and drinking of water.
Chronic pain is pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to acute pain that arises suddenly in response to a specific injury and is usually treatable, chronic pain persists over time and is often resistant to medical treatments.
The connection between stress and heart disease is not clear. Stress itself may be a risk factor, or high levels of stress may make risk factors for heart disease worse. The warning signs of stress can be physical, mental, emotional, or behavioral. Reducing stressors in an individuals life not only can lead to a more productive life, but may also decrease the risk for heart disease and causes of heart disease.
Stress may be considered as any physical, chemical, or emotional factor that causes bodily or mental unrest and that may be a factor in disease causation. An important goal for those under stress is the management of stress in our lives. Elimination of stress is unrealistic, since stress is a part of normal life. We can however, learn to manage stress through techniques such as exercise, relaxation, meditation, time management, and support systems so that we have control over our stress and its effects on our physical and mental health.
Bad breath can result from poor oral hygien habits and may be a sign of other health problems. Bad breath, also called halitosis, can be made worse by the types of food you eat and other unhealthy lifestyle habits.
Pregnancy planning is important to help prevent exposure of the mother and fetus to potentially harmful medications and substances during the early days, and throughout the pregnancy. Nutritional planning, prevention of birth defects, conditions such as high blood pressure, heart disease, diabetes, and kidney disease need careful monitoring. Gestational diabetes, preeclampsia, and pregnancy induced hypertension are conditions that may arise during pregnancy. Immunizations, inherited disorders, exercise, air travel, intercourse, and birth control are important factors to consider when planning a pregnancy.
Travelers should prepare for their trip by visiting their physician to get the proper vaccinations and obtain the necessary medication if they have a medical condition or chronic disease. Diseases that travelers may pick up from contaminated water or food, insect or animal bites, or from other people include malaria, meningococcal meningitis, yellow fever, hepatitis A, typhoid fever, polio, and cholera.
Though it's difficult to say why some people develop cancer while others don't, research shows that certain risk factors increase a person's odds of developing cancer. These risk factors include growing older, family history of cancer, diet, alcohol and tobacco use, and exposure to sunlight, ionizing radiation, certain chemicals, and some viruses and bacteria.
Though the holidays are a fun time for most, for others, they're a sad, lonely and anxiety-filled time. Get tips on how to avoid depression and stress during the holiday season.
Asbestos exposure lung disease is divided into three main types, asbestosis (lung scarring caused by asbestos fibers), disease of the lining of the lung (pleural plaques, scarring, or fluid accumulation), and lung cancer. Mesothelioma is cancer of the lining of the lung caused by asbestos exposure. Cancers of the larynx, throat, kidney, esophagus, and gallbladder have been linked to asbestos exposure. Treatment is dependant upon the type of condition related to asbestos exposure.
Regular physical activity can reduce the risk of disease. Regular exercise can also reduce the symptoms of stress and anxiety. There are fitness programs that fit any age or lifestyle.
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