Some common behavior changes you may notice if someone you know is abusing drugs and/or alcohol are:

  • Sudden or extreme changes in friends, eating habits, sleeping patterns, physical appearance, coordination or school performance
  • Loss of interest in hobbies or family activities
  • Hostile or uncooperative attitude
  • Secrecy about actions or possessions
  • Stealing money or an unexplained need for money
  • Medicine containers, despite a lack of illness, or drug paraphernalia in the individual's possession
  • An unusual chemical or medicine smell on the individual, or in the individual's room or automobile