Artificial meets

Emotional Intelligence

Meet the first AI wearable that transforms how you feel.

Buy Now Learn more
Artificial meets
Emotional Intelligence

Meet the first AI wearable that transforms how you feel.

Buy Now Learn more
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Insurance Check

See if you can get a Lief funded through your insurance provider. Submit a little information about yourself, and we'll get in touch.

Listen to the heart
Start training
your mind

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.

Listen to the heart

EMOTIONAL INTELLIGENCE

How it works
Listen to the heart
Listen to your body

Lief measures your heart and breath to track your stress levels in real-time, using a clinically-proven biomarker of stress called heart rate variability (HRV).

Train with A.I.

When you're under pressure, learn to control your body's natural stress response through gentle, safe biofeedback exercises.

Practice when you need it by following the vibrations. It's just 3 minutes, and you can do it anywhere.

Listen to the heart
Train with A.I.

When you're under pressure, learn to control your body's natural stress response through gentle, safe biofeedback exercises.

Practice when you need it by following the vibrations. It's just 3 minutes, and you can do it anywhere.

Listen to the heart
Transform how you feel

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

Follow Your
Listen to the heart
HEART RHYTHM
BREATHING
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.
Listen to the heart
HEART RHYTHM
BREATHING

PSYCHOTHERAPY EXPERTS

Meet your team

Lief AI is supported by Stanford-trained clinical psychologists, therapists and health coaches who care deeply about your mental health.

Take your training goals to the next level with live chat and video sessions. Use as little or as much as you need.

Listen to the heart
Listen to the heart

THE SCIENCE BEHIND HRV

Clinically
proven results

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.

Learn more

TRUSTED BY:
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CHECK YOUR HEALTH INSURANCE

Did we mention

it might be covered?

Our program is covered by many insurance plans. Depending on your coverage, you may have reduced out of pocket costs.
Check eligibility
CHECK YOUR HEALTH INSURANCE

Did we mention

it's covered by insurance?

Our program is covered by many insurance plans. Depending on your coverage, you may have reduced out of pocket costs.
Check eligibility
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Used by thousands around the world

Wearable relief

from inside out

Buy Now

Wearable relief

from inside out

Buy Now