You can watch this video and the other ones to see if there is any reason at all to trust this guy.

Doctor's Shocking Video Reveals: These 7 Things Trigger Alzheimer's in Your Brain

This has lots of sales pitches for his Wellness Report. NO references to research at all. Flu vaccines should not be taken because of the toxic metals in them. Wow, what a load of ---. Even talked about detoxing your brain.

After 15 minutes I gave up because the sales pitch was overbearing, never did learn anything useful.

My complete list here:
Dementia prevention 19 ways

Other information to consider when deciding whether to trust anything he has to say;

Interview: Dr. Russell Blaylock Exposes Obama's Nazi Healthcare System

Quack of the Day: Dr. Russell Blaylock

Skeptics Dictionary - Russell Blaylock, M.D.