Everyone feels the blues at times. Sadness, disappointment, and fatigue are normal parts of life. So it's essential to recognize the warning signs of depression. If you or someone you love experiences four or more of the following symptoms for more than a few weeks, you should seek competent help as soon as possible.

• Loss of interest or pleasure in ordinary activities
• Decrease in sexual drive
• Sleep disturbances (insomnia, early-morning awakening, oversleeping)
• Eating disturbances (appetite and/or weight loss or gain)
• Decreased energy, fatigue
• Feelings of pessimism, guilt, worthlessness, helplessness, hopelessness
• Thoughts of death or suicide, suicide attempts
• Activity level slows down or increases
• Diminished ability to think and/or concentrate
• Increased irritability
• Social isolation
• Increased use of alcohol or other drugs