A technical video but important for doctors at least to know about and to educate patients.
Has to do with folic acid[folate] , vitamin B12, homocysteine and more. About all of this you received many emails from me in the past.
Hope to explain more in the future, really not a simple issue. Homocysteine is highly neglected in Israel by most doctors and is not on the computer list of blood examinations of the kupot!! [sick funds]