I could not tell you about ringworms in the brain ! But I do believe that parasites and heavy metal or other toxins play a big part in depression! I dont have the final proof for myself yet because I am in the process of doing a parasite cleanse and detoxing throught the other cleanses ! Ive had Depression for many years and I do have high toxic load and I am zapping as we speak and I have eliminated liver flukes and other unknown critters ! I would say do the cleanses why take a chance get them parasites out! Grog