Marcy and Jack open HeartMath's thirty-year greatest-hits album — the two thousand sixteen monograph Science of the Heart — and a sixty-two-person trial where the coherence group lowered blood pressure about ten millimeters of mercury, plus a two-minute morning slowdown. Read the paper: Science of the Heart: Exploring the Role of the Heart in Human Performance (Rollin McCraty, 2016, HeartMath Institute monograph) — https://242669722.hs-sites-na2.com/hubfs/Downloads/hm/science-of-the-heart-vol-2.pdf