Contrary to popular belief, those with depression do not necessarily have anxiety and the same is true for those with anxiety. However, each disorder has very similar physiological states as well as environmental triggers, so it is no surprise that those diagnosed with anxiety often have depression as well.

Someone who suffers from depression will experience intense feelings of sadness combined with feelings of worthlessness, hopelessness and helplessness for weeks, months or even years at a time.

The morning hours of the day seem to harbor the most intense symptoms, however they can be experienced throughout the day. In addition to the afore mentioned symptoms, depression sufferers may also experience fatigue, insomnia, hypersomnia and feelings of guilt. In most cases, people suffering from depression will withdraw from activities that once gave them pleasure and instead endure feelings of restlessness, irritability and thoughts of death or suicide. Depression can also decrease or increase a person's weight in a very minimal period of time.

Researchers believe that there are several factors which cause depression with the first being a chemical imbalance in the brain. Neurotransmitters in the brain secrete or receive chemicals which regulate mood and emotions. These chemicals include dopamine and serotonin. Studies have shown that those diagnosed with depression are lacking one or both of these chemicals or have defective neurotransmitters. No matter the cause, the fact still remains that something is lacking in the brain which results in a mood disorder.

Environmental triggers of depression include stressful events and medications whether legal or illegal. In addition, someone who displays a pessimistic personality is also likely to be afflicted with depression.

An anxiety sufferer is highly susceptible to depression as their pessimistic attitude has their thoughts creating worry and unrealistic scenarios which are extremely negative. Many people experiencing both disorders are lonely and hard to understand which can then result in intense thoughts of suicide or death.

It is good to know that treating one disorder generally treats the other as well. Methods of treatment include cognitive behavior therapy or psychotherapy in combination with prescription medications. These treatments allow the patient to both deal with the symptoms in a positive way as well as recognize them and find ways to prevent them.

If you or someone you know is exhibiting signs of anxiety or depression, it is very imperative that you seek the help of a professional mental healthcare provider.