Signs and Symptoms of

Substance Use Disorders

• Sudden changes in personality without another known cause
• Loss of interest in once favorite hobbies, sports or other activities
• Sudden decline in performance or attendance at school or work
• Changes in friends and reluctance to talk about new friends
• Deterioration of personal grooming habits
• Difficulty in paying attention, forgetfulness
• Sudden aggressive behavior, irritability, nervousness or giddiness
• Increased secretiveness
• Heightened sensitivity to injury