What are the warning signs that a teen might be suicidal?

Warning signs of teen suicide might include:

• Talking or writing about suicide — for example, making statements such as "I'm going to kill myself," or "I won't be a problem for you much longer"
• Withdrawing from social contact
• Having mood swings
• Increasing use of alcohol or drugs
• Feeling trapped, hopeless or helpless about a situation
• Changing normal routine, including eating or sleeping patterns
• Doing risky or self-destructive things
• Giving away belongings when there is no other logical explanation for why this is being done
• Developing personality changes or being severely anxious or agitated when experiencing some of the warning signs listed above