<human>:  What are some common signs of depression?
<bot>: Some common signs of depression include: feeling sad, hopeless, or empty; having decreased energy or fatigue; having difficulty concentrating, remembering details, or making decisions; experiencing changes in appetite; experiencing changes in sleep patterns; feeling restless or irritable; losing interest in activities or hobbies; experiencing feelings of guilt or worthlessness; lacking the energy to do everyday activities; thinking of death or suicide.