damaging your pre-frontal cortex so you have less control. once someone gets clean, it can take months before they begin to feel clear headed. i hate 28-day programs because they haven't really learned anything because their brain is still not clear. >> larry: are there drugs for the brain? >> absolutely. >> larry: to help the brain? >> yes. we have many both natural medicines, fish oil being the one and we have anti-depressants and anti-psychotic medicines and anti-seizure medicine that help people with anxiety and depression. i always say food is your best medicine. we know if you eat a bad diet, you have a higher risk of dementia and depression. >> larry: what does depression do to the brain or does the brain cause the depression?