Grief is a reaction to the loss of something or someone important to the victim. It is a multifaceted reaction in that it has emotional, physical, cognitive, behavioral, social, and philosophical dimensions. All of us have experienced the loss of family member, a friend, or a pet. They may have died or moved away. However they came to leave your life, you experienced sadness, some depression, perhaps had trouble sleeping or sleeping too much, lack of appetite, tiredness, difficulty concentrating, or lack of desire to socialize. These reactions are normal and pass eventually. However, if these symptoms continue and start to interfere with day-to-day life and functioning it can be beneficial to see a professional and use a brief course of antidepressants and/or therapy.