Mind and brain are interchangeable, they work together, mind works through the brain but it separate from the brain.
Mind uses the brain to responds in action. Mind is an energy, it generate energy through thinking, feeling and choosing. The major part of any activities we use brain technology, which helps us to generate mind energy through cognitive coordination, at the same physical structures in our brain is made up of protein. This build the cognition which creates the changes in brain is called neuroplasticity.
If inner connectivity of brain is damaged ,sure, it result in secretion of any chemicals and affect the cognitive coordination with other parts of body.
This leads to several mental illness developmental disorder or any disorder.
To overcome these ,sure needs the help from psychiatrist ,psychologist to treat put under essential therapy .