The existing paradigm about the brain has ceased to function adequately. - Richard Bergland

As it is possible that the memory loss of senile dementia may stem from a deficiency of 'memory peptide', obesity may result from a deficiency of either bombesin, somatostatin, cholecystokinen, gastrin, or insulin.

If the question, 'Why is the heart hollow?', had a profound impact on all intellectual disciplines, would you expect any less of the question, 'Why is the brain hollow?'

If a 'memory peptide' could be found to be deficient in patients with dementia, these patients could be treated in the same way that patients with diabetes are treated with insulin.