An advantage is that it has led to the development of medications and other biological treatments to help individuals suffering from mental health disorders. For example, drug treatments have been developed to alter the neurochemistry of ppl with OCD, depression, schizophrenia etc. SSRIs are commonly prescribed for OCD, which increase serotonin levels and reduce symptoms. This is a strength as it improves quality of life. However, biological based treatments are not always effective. For example, research has shown that cognitive and behavioural therapies may be more effective.