(BlackDoctor.org) -- Depression is a common, but often unrecognized disease. Almost everyone has experienced a sign or symptom of depression. These feelings and thoughts are helpful warning signs that something isn’t right.

Depression is often thought of to be a personal weakness, but it’s not. It is a medical condition. People who suffer from depression should seek medical treatment, although many avoid it for various reasons.

Without treatment, depression can last for weeks, months or even years. Besides feeling sad, tired and rundown, untreated depression can also increase the risk of other problems, including:

• Increased difficulty making decisions and facing life’s challenges.

• A weakened immune system, resulting in more and longer-lasting illnesses.

• Insomnia, which leads to fatigue, reduced mental clarity, and trouble concentrating.

• A higher risk of death in the event of a heart attack or stroke.

• Alcohol and drug use, abuse, and dependence.

• Long-term disability, resulting in lost wages and financial struggle.

• Strained relationships with family and friends.

• Suicidal thoughts and/or attempts. If you are seriously thinking about harming yourself, please call the National Suicide Prevention hotline (1-800-273-8255) right now.