Allergies occur when the immune system identifies certain substances such as pollen, bee venom, nuts or pet dander as harmful and produces proteins known as antibodies to combat them. These antibodies, in turn, lead to the release of certain...
Anger serves an adaptive function in our lives by mobilizing us to take action on a perceived threat. Depression makes us feel powerless, which can be perceived as a threat. These basic facts about our emotional lives set the stage for what can be...
There are people who are depressed and do not know how to deal with their feelings and mood swings. One way is to feed their emotions with food in response to gloominess. It is a far more serious problem when depression and eating turn into a...
While any type of physical illness can affect mood, chronic illness is most likely to cause clinical depression. Examples of chronic illness include arthritis, cancer, colitis, kidney disease, diabetes, heart disease, HIV/AIDS, lupus and multiple...
A poor diet may make you more vulnerable to depression. A lack of certain nutrients can cause mood swings. Food also affects certain chemicals in the brain that regulate mood and behavior. Replenishing nutritional deficiencies and adding healthy...
According to the National Institutes of Health, work stress is a possible cause of depression. However, untreated depression can lead to more severe mental problems. According to John Klapow, associate professor at the University of Alabama at...
Liver disease is not actually one disease but a collection of diseases, infections and conditions that affect the function and cells of the liver. There are a number of essential functions the liver is responsible for, including the breakdown and...
According to the University of Maryland Medical Center (UMMC), withdrawal symptoms from nicotine can include headaches, irritability and a powerful desire for cigarettes or other products that contain nicotine. The American Psychiatric Association...
According to a 2002 review in "American Family Physician," depression is the second-most common chronic disorder seen by primary care physicians, and major depression affects more than 10 percent of Americans. Medications are often prescribed for...
If you're feeling weak, tired and depressed, it would be wise to take a look at your diet. When you're not receiving an adequate supply of the essential nutrients your body needs, that dietary shortfall can influence the balance of chemicals that...
Anxiety, irritability, impatience and restlessness are temporary effects of the physical withdrawal from nicotine. But depression may linger on as a result of giving up the drug, a long time friend mentally and physically for ex-smokers. This has...
Chemicals in the brain, called neurotransmitters, play a role in depression. Sometimes, the chemicals become imbalanced, causing depressive symptoms to arise. Although there are several reasons a person can become depressed, this is the biological...
Episodes of depression, and associated weight changes, vary greatly from person to person; some people may gain weight while depressed while others may lose weight. Because depression can affect your eating and sleeping patterns, it is possible...
Depression is a type of neurological disorder in which someone has symptoms of sadness, low self-worth, irritability, emptiness, insomnia, overeating, loss of appetite, anxiety, restlessness, fatigue and thoughts of suicide. Many times depression...
Depression is an illness that people often cannot snap out of. The symptoms and emotions connected to it consume them, making them feel that life is hopeless. In some cases, suicide feels like the best option when compared to living in the sadness...
According to the Scripps Research Institute, no one cause is likely responsible for clinical depression. The causes of depression are likely to vary among different individuals. The factors in depression might be biological, genetic,...
There is more than one cause of depression. Some things that may bring on this mental disorder in a seemingly healthy person are the loss of a loved one, job loss, divorce, becoming a victim of abuse or a crime, or any other life-altering event....
Research suggests that as many as 8 percent of adolescents experience depression at least once during any one-year period. Exact causes of depression in teens are not known, but research suggests it's the result of several interrelated factors....
Adolescence can be a difficult time for a teenager, which contributes to the prevalence of depression in that age group. The National Institutes of Health (NIH) states that some teenagers "have low self-esteem, are highly self-critical, and...feel...
Neurotransmitters are endogenous chemicals used by the central nervous system to help communicate signals from one area of the brain to another. According to the website All About Depression, an imbalance in neurotransmitters, such as serotonin,...
Psychotic depression, otherwise known as major depression with psychotic features, is one of the most severe forms of depression. Medline Plus, a service of U.S. National Library of Medicine, indicates that psychosis consists of a lowered...
Bipolar depression can cause dramatic changes in behavior, mood and thinking. Often referred to as bipolar disorder or manic depression, it causes people to experience periods of severe depression followed by delirious highs of mania. Unlike...
Feeling down or sad once in a while is normal. However, when these feelings overtake your day-to-day life and impair your ability to work, eat, sleep and play, depression may be the culprit. There is no one single factor that can cause severe...
A mood disorder, depression causes patients to feel helpless or hopeless, and affects their perception of the world. For example, depressed patients can feel worthless even if they live productive lives. Many factors can contribute to the onset of...
Depression is not merely a state of mind--it is not an illness someone can snap out of when they choose. Its causes are complex, and often it is a combination of causes responsible for this disorder, according to Depression.com. While all causes...
Relationships can cause depression through lifestyle changes. With any relationship, whether it be parent and child, marriage, dating or friendships, there is always some form of lifestyle change that may arise. Changing for someone else is never...
According to Jeanne Segal, Ph.D., psychologist and managing editor of HelpGuide.org, identifying teen depression can be difficult. Teens have a natural tendency to be moody and pull away from parents. The difference between depression in teens and...
Despite its name, atypical depression is actually quite common, especially in women. It is characterized by excessive weight gain and an increased desire to sleep for long periods of time. The patient suffering from atypical depression is overly...
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