Answer:• Stress: Schoolwork, social pressures, family problems, and personal challenges can all contribute to stress.• Hormonal changes: Puberty can cause mood swings and other emotional changes.• Substance abuse: Using alcohol or drugs can have a negative impact on mental health.• Lack of sleep: Getting enough sleep is important for overall well-being, including mental health.• Bullying and cyberbullying: Being bullied or cyberbullied can lead to low self-esteem and depression.• Family history of mental health problems: If a family member has a mental health condition, it may increase the risk of developing one.• Social isolation: Feeling lonely or isolated can contribute to mental health problems.• Lack of support: Having a strong support system, such as friends and family, can help protect against mental health problems.