Are you wanting to do the hawthorne berry because you already have high blood pressure? If not, then it's merely your choice if you want to run it or not. Use the Hawthorne Berry extract at 1500 mg ED for the 4 weeks your on. Honestly i don't think you would need it unless you already have high blood pressure. A 4 week cycle isn't going to raise your blood pressure that high to a point were you need to worry about it. I tried M1T the most i got out of it was alot of sleep. It makes you real lethargic.