HeartMath (heartmath.com) is the online home of the HeartMath Institute and HeartMath Inc, pioneering heart‑focused research, tools, and biofeedback technologies since 1991. Their work centers around cultivating Heart Coherence—a harmonious alignment of heart, mind, and emotions—to reduce stress, boost performance, and enhance well-being through science-based emotional self-regulation. Here's a deep dive into what they offer and why it matters: