Morning Coherence

Marcy and Jack open Season 2 with eighteen commercial pilots who learned Quick Coherence during the pandemic — and hit the same coherence level in the cockpit as at home — plus the morning practice. Read the paper...

Marcy and Jack close out the first twenty papers with the Intuitive Heart booklet — sorting real pattern intuition from contested claims about sensing the future, plus the morning practice. Read the paper: The Intuitive...

Marcy and Jack dig into a two thousand four study where heart-rate patterns diverged about four and a half seconds before emotional photos — and the honest caveats that keep it contested, not proven — plus the morning...

Marcy and Jack dig into a two thousand fifteen study of seventy-one dementia caregivers — three months of heart-coherence workshops, burnout dropping, results holding at six months, and the honest no-control-group...

Marcy and Jack dig into a nineteen ninety-eight study where a month of heart-coherence practice was linked to twenty-three percent lower cortisol and doubled DHEA — with the honest caveats held — plus the two-minute...

Marcy and Jack take on a two thousand twenty-five review — how stress retrains the nervous system's alarm, and what small trials say coherence practice can do about it — plus the two-minute recalibration practice. Read...

Marcy and Jack take on a two thousand sixteen prospective study — three hundred forty-three soldiers, a ten-minute resting heart reading taken before deployment, and what it could and couldn't predict — with the honesty...

Marcy and Jack take on a two thousand ten pilot study — ten combat veterans, four weeks of HRV biofeedback, sharper attention, and the honesty caveats that keep the science honest — plus a two-minute...

Marcy and Jack take on the spiciest paper so far — the one behind the 'your heart broadcasts to other people' idea. What's measured physics, and what needs a much bigger grain of salt. Read the paper: The Energetic...

Marcy and Jack dig into neurocardiology — the heart's own nervous system of more than fourteen thousand verified neurons, and why the famous forty-thousand figure doesn't check out — plus a two-minute listening-post...

Marcy and Jack take on a two thousand nine HeartMath chapter arguing positive emotions may start in the heart, not the brain — the smooth ten-second coherence wave where heart, breath, and blood pressure lock into one...

Marcy and Jack take on a two thousand four chapter arguing appreciation is its own physiological mode — heart, breath, and brain locking into the same ten-second wave, measurably distinct from relaxation — plus a...

Marcy and Jack take on a nineteen ninety five cardiology study where five minutes of anger and five minutes of appreciation both turned the body's volume up — the difference was the pattern, not the amount — plus a...

Marcy and Jack take on a nineteen ninety five study where five minutes of self-generated care raised an immune antibody, and five minutes of anger suppressed it — one to five hours later — plus a two-minute...

Marcy and Jack dig into Rollin McCraty's 2015 heart-brain monograph — emotions are made heart-first. Read the paper: Heart-Brain Neurodynamics: The Making of Emotions (Rollin McCraty, 2015, HeartMath research monograph)...