You have the ability to transform how you feel. It’s a skill, and we’re here to help you build it. With Lief, you’ll learn how to train your body to stay calm and focused when you need it most. Lief improves your heart rate variability, a scientifically-proven biomarker of mental health. Follow the vibrations to build awareness of your triggers, then self-regulate in the moments you need it most.

Track with Lief – The Lief is the most intelligent, clinically accurate HRV wearable device for mental health, and the only one that can intervene in real time to help your body de-stress.

Train with Coaches – Your Lief coach will chat with you one-on-one to share mindfulness building tips and answer any questions.

Transform how you feel – As your average HRV increases, you’ll feel the difference and experience the power of calming your mind on-demand.

We’re a drug-free solution to stress and worry backed by empirical research, as well as decades of evidence on heart rate variability biofeedback.