Decision-state infrastructure
for leaders under pressure.
HeartCore uses Apple Watch biometrics, with HRV as the primary signal, to help senior leaders recognize physiological state shifts before consequential decisions.
Two surfaces. One signal.
On your wrist, a single state classification. STEADY, ACTIVATED, or DEPLETED. No charts. No scores. Just a word that maps to decades of autonomic nervous system research.
On your phone, a daily retrospective. Three sessions, tagged to calendar events, showing recovery curves and decision windows you may have missed.
The intelligence lives between the two: the watch intervenes in real-time, the phone builds pattern recognition over 90 days.
Watch face
Three cues delivered today
Held steady. One elevation at 9:38.
Recovered in 1m 42s
Two elevations. Settled after each.
Recovered in 2m 08s
In progress
Today View
The decision you regret was physiological before it was strategic.
Senior leaders make their highest-consequence decisions during their lowest-quality physiological states. The board meeting after a red-eye. The restructuring call during a cortisol spike. The investor conversation on 4 hours of sleep.
The data is unambiguous: HRV below personal baseline correlates with impaired executive function, reduced cognitive flexibility, and narrowed peripheral awareness. Yet no infrastructure exists to surface this signal at the moment it matters.
“35,000 decisions per day. The consequential ones cluster in windows of physiological depletion that leaders cannot self-detect.”
Thayer et al., Neuroscience & Biobehavioral ReviewsState Detection
Continuous HRV monitoring classifies your autonomic state in real-time. No manual logging. No questionnaires. The Watch observes what you cannot feel.
Decision Context
State classification against your personal baseline, not population norms. STEADY, ACTIVATED, or DEPLETED — calibrated to your nervous system over 90 days.
Recovery Loops
Daily retrospective maps physiological states to calendar events. Pattern recognition emerges: which meetings deplete, which contexts sustain.
How it works
Sense
Continuous Apple Watch HRV and autonomic state telemetry.
Interpret
Algorithmic classification against your personal leader baseline.
Intervene
Silent haptic pattern when state begins to shift.
Reflect
iPhone retrospective builds your decision-state map over 90 days.
This is not wellness.
This is infrastructure.
“HeartCore is built for the moments when pressure changes physiology, physiology changes perception, and perception changes judgment.”
Research-Backed Design
HeartCore's infrastructure is built on validated models of autonomic regulation, not pseudo-scientific wellness metrics.
Model Advisory
James Heyman, PhD
UC Berkeley Haas
Judgment & Decision-Making
HRV & Autonomic Regulation
Heart rate variability serves as a robust proxy for autonomic nervous system flexibility and the ability to regulate state under load.
Thayer, J. F., et al. (2012). Meta-analysis of HRV and neurocognition.
Stress & Executive Function
Acute physiological arousal systematically biases cognitive control, narrowing attention and favoring habitual over goal-directed choices.
Shields, G. S., et al. (2016). Acute stress on core executive functions.
Longitudinal Monitoring
Continuous ambulatory assessment reveals patterns in allostatic load accumulation invisible to point-in-time subjective self-reporting.
Slavich, G. M., et al. (2019). Wearable technology for continuous monitoring.
The 90-day program
30 senior leaders across EU and US. Individual baseline calibration, real-time state classification, daily retrospectives. Your biometric data never leaves your device.
Privacy
On-device processing. No cloud. No employer access.
Calibration
Personal baseline over 14 days. Not population norms.
Commitment
Wear your Watch during work. Review 3 daily cues.
The Team
Sandy Rathod, PhD
CEO, Behavioral Science
Embodied leadership, decision-state research
Pieter Aarts
Co-founder
Business development, organizational psychology
Fred Dijkstra
CTO
Technical architecture, platform engineering
Technology Partner
YipYip B.V. (Rotterdam)
Timeline
Closed Pilot Launch
30 senior leaders across EU and US Series B-D companies. 90-day data capture begins.
Pilot Completion
Pattern validation, intervention tuning, recovery loop structuring from pilot telemetry.
Seed Round
Scale to 200 participants. Team-level intelligence layer.
Product Launch
Enterprise beta. Organizational resilience signals.
I lead under pressure
Apply for the
90-day pilot
I invest in infrastructure
Request the
founder briefing
No scores. No surveillance. Just infrastructure.