We know nothing of your medical history or condition. Ask your doctor.
Yes, drugs can cause a chemical imbalance in the brain, which may lead to potential mental health issues.
Mental health concern becomes a mental illness when ongoing signs and symptoms cause frequent stress and affect your ability to function. A mental illness can make you miserable and can cause problems in your daily life, such as at school or work, or in relationships. I prefer to those who have mental health issues have to make a contact with a good therapist in your near because the therapist helps the person a lot in overcoming their issue.
A bad head injury could cause long term mental illness, due to brain damage.
Factors that develop mental health are genes; trauma (such as a bad accident; witnessing a trauma; abuse; rape, etc.) Stress alone can also cause mental health issues along with the misuse of street drugs and alcohol.
Being overweight can cause many health issues and you're more prone to injury.
Brain injury, strokes, and syphilis can cause organic mental disorders.
Sometimes mental retardation is a genetic defect. Sometimes it is the result of injury.
Organic Mental Health problems have an identifiable physical cause; such as in the dementias or some people with brain injury. Functional Mental Health Problems are not due to simple structural abnormalities of the brain. There is no 100% identifiable cause for these illnesses. The jury is still out.
While it is unlikely for boredom itself to directly cause death, prolonged feelings of extreme boredom can lead to mental health issues like depression and anxiety, which can have physical health implications. Additionally, taking risks or engaging in dangerous activities out of boredom can increase the likelihood of harm or injury.
Over-exercising can lead to physical issues like muscle strain, fatigue, and increased risk of injury. It can also cause mental health problems such as anxiety, depression, and obsessive behavior. It's important to balance exercise with rest for overall well-being.
Flat head syndrome does come with a high risk of learning delays and development. If not treated it can cause mental issues as an adult.
Traumatic brain injury caused by a blow or a violent shake to the head may also cause brain damage and mental retardation in children.