Yes, substance abuse and mental health conditions are closely linked. Many people use drugs or alcohol to cope with stress, anxiety, or depression, but these substances often worsen symptoms over time. Substance abuse can disrupt brain chemistry, intensify mood swings, and increase the risk of psychosis or suicidal thoughts. It also interferes with treatment, making recovery more difficult. Breaking this cycle requires integrated care that addresses both addiction and mental health. Support groups, therapy, and medical treatment provide effective recovery paths. With proper help, people can heal and rebuild healthier lives.