Depression is a serious mood disorder that has a significant impact on the sufferer's health and well-being. The World Health Organization (WHO) states that approximately 121 million people worldwide have depression; the organization adds that depression is also one of the leading causes of mental and physical disabilities. Without proper treatment, the patient can have severe difficulty performing daily tasks. Depression not only causes sadness, hopelessness and irritability, but it can result in eating disorders, substance abuse and suicide, as well.
Eating Disorders
One symptom of depression is changes in appetite, which can manifest as either appetite loss or increase. As a result, weight changes occur. According to Helpguide.org, changes in appetite can sometimes result in eating disorders. Examples include yo-yo dieting, anorexia, bulimia and binge eating. Subsequently, these eating disorders result in poor nutrition, anemia, hormonal problems and kidney failure, according to the U.S. Department of Health and Human Services.
Substance Abuse
Another heath issue that results from depression is substance abuse. Helpguide.org states that many patients resort to alcohol and drugs in an attempt to push their problems out of their mind. Substance abuse, however, can exacerbate the symptoms of depression, especially since alcohol and many drugs are depressants. The American Council for Drug Education states that symptoms of substance abuse include problems sleeping, tremors, irregular heartbeat, hyperactivity, lack of motivation, forgetfulness and chronic dishonesty.
Suicide
A serious consequence of depression is suicide. About 850,000 people each year take their own lives, with depression as one of the causes, according to WHO. Warning signs of suicide include talking about death, preoccupation with death and making final arrangements. Any suicide sign should be taken seriously, and professional help should be sought immediately.
