Because of the high volume of inquiries he receives, John is not able to respond to the majority of questions. Those he does answer will be posted on the Ask John page of this site.

Please bear in mind that John is not an M.D., and this site is not intended to provide answers to personal medical issues. Questions answered may have personal components, but should have general relevance to a wider audience than just the person asking or their immediate family.

Fill out this form if you want to submit a question. Your contact information will not be distributed or sold.