The document outlines five potential troublemakers for young adults to avoid: 1) Stress from school and work, which can be managed through exercise and time management. 2) Weight gain from fast food and alcohol, which can be prevented by balanced nutrition and exercise. 3) Sleep deprivation affecting mood and performance, which is best addressed by getting 8 hours of sleep. 4) Partying too much with drugs and alcohol instead of focusing on school. 5) Unsafe sex putting health at risk, which is best avoided through safe sex practices and limiting partners.