WHOOP Recovery Score: Green, Yellow and Red Explained

A WHOOP Recovery score is a percentage, calculated when you wake up, of how prepared your body is to take on strain that day. Green (67 percent and up) means well recovered, yellow (34 to 66) means ready for moderate strain, and red (33 and under) means rest is probably what your body needs. It is built mainly from overnight HRV, resting heart rate, sleep and breathing rate.

Here is what each color means, in WHOOP's words and in practice:

The bands and descriptions come from WHOOP's developer documentation. WHOOP's own Recovery guide adds that the average recovery across members is about 58 percent, so yellow is the most ordinary color there is.

If you want a plain-English read of today's percentage, the Stress Score Checker explains what a WHOOP Recovery score means and what is worth doing about it, and it covers Garmin, Oura, Fitbit and Apple Watch numbers too if you switch between devices.

What goes into your Recovery score

WHOOP calculates Recovery once, when you wake up, from measurements taken during your sleep and the day before. The score stays the same all day unless you edit your sleep, which makes WHOOP recalculate it. The main inputs:

• Heart rate variability (HRV). The variation in time between heartbeats. WHOOP measures it as a dynamic average across your sleep, with more weight on your deepest sleep (WHOOP's HRV guide).
• Resting heart rate. Lower than usual generally means your heart is working less hard overnight.
• Sleep performance. The sleep you got compared with the sleep WHOOP estimates you needed.
• Respiratory rate. Breaths per minute. WHOOP says it usually stays steady night to night and often does not move your recovery, but a significant change may be a sign you are getting sick.
• Blood oxygen and skin temperature. WHOOP's developer documentation lists these for WHOOP 4.0 members, and WHOOP says they help show when you may be ill.

Everything is compared with your own history, which is why a recovery score means nothing when compared with a friend's. WHOOP's member data shows how wide the spread is: average HRV is 65 ms for men and 62 ms for women, but the most common values are about 40 and 37. What is a good HRV has the age tables if you want to see where your own HRV sits.

Recovery and Strain

Recovery is half of a pair. WHOOP Strain measures the load on your body on a 0 to 21 scale, grouped into light (0 to 9), moderate (10 to 13), high (14 to 17) and all out (18 to 21). Based on your recovery, WHOOP suggests how much strain to aim for that day: go well above it and you are overreaching, stay below it and you are restoring. A green morning is an invitation to take on more, not an instruction.

Why is my WHOOP recovery red?

WHOOP's guide lists the usual causes: a poor night of sleep, being sick and high strain the day before, plus stress, alcohol, irregular sleep, not eating enough, and travel across time zones or to high altitude. It also notes that a late meal usually hurts next-day recovery.

Alcohol deserves its own line, and WHOOP calls it "a big one." In a study of 4,098 Finnish employees who wore heart monitors in everyday life, alcohol increased fight-or-flight activity and reduced calming activity during the first three hours of sleep. The effect grew with the dose and appeared even at low intake, and being young or fit did not protect against it.^[1] In WHOOP terms, that means lower HRV and a higher resting heart rate the next morning.

Stress works through the same channels. A tense day, a fight or a worry loop at bedtime keeps your body more alert overnight. How to stop overthinking at night helps when the problem starts after the lights go out.

Short or irregular sleep shows up directly in sleep performance. If it is a pattern, sleep debt explains how to work out how far behind you are and pay it back.

If your HRV is the input that keeps dragging recovery down, low HRV covers what a sustained drop can mean.

What to do on red, yellow and green days

Red. Keep strain low: a walk, mobility work or an easy spin instead of intervals. Look for the obvious cause, such as drinks, a short night, a hard session or early signs of illness. Then protect tonight with an earlier bedtime and no alcohol. Several reds in a row with feeling run down is a reason to rest fully.

Yellow. A normal day. Train if you planned to, but keep the hardest efforts moderate, and do not pile a big strain day on top of a run of yellows.

Green. Go ahead, if you also feel good. A green score does not override a sore knee, a fever or a heavy heart.

WHOOP's own suggestions for raising recovery are simple: get the sleep you need, stay hydrated, eat well, take a midday nap when you can, try meditation or breathwork, and keep your daily rhythm regular. How to improve HRV goes through the evidence for each.

Recovery, stress and the Stress Monitor

WHOOP also has a Stress Monitor that gives a real-time stress score from 0 (low) to 3 (your peak stress level). It compares your heart rate and HRV in the moment with your personal baseline from the past 14 days and takes motion into account, so a workout does not read as mental stress. It also offers short breathwork sessions, including cyclic sighing for relaxation.

That breathing pattern has research behind it. In a randomized study, five minutes a day of cyclic sighing, which stretches out each exhale, improved mood and lowered breathing rate more than the same amount of mindfulness meditation over a month.^[2] If you want a guided version that is not tied to any device, the Vagus Nerve Reset is a five-minute calming routine built on slow, long-exhale breathing.

WHOOP is careful about what the Stress Monitor means: its features are not intended to diagnose anything, including mental health conditions, and WHOOP says no conclusion about your mental health should be drawn from them. To log how stressed you feel, WHOOP points to its Journal. The stress level test is another way to put words to what has been driving it.

When the color and your day do not match

A red morning when you feel great usually means something physical: a drink, a late meal, a hard session or a cold starting. Take it easy anyway for a day and see whether the score bounces back.

A green morning when you feel awful matters more. Recovery measures your heart, breathing and sleep, not grief, worry or a bad week at home. If you have been green on paper and flat in real life for a while, trust your experience, and read emotional exhaustion to see whether it fits.

Track it

WHOOP's Journal lets you log behaviors, such as alcohol, late meals or breathwork, and see how they affect your recovery over time. Use it for a month on one or two behaviors at a time rather than ten.

Then add the part WHOOP cannot measure. The 60-second mental health check-in records mood, energy, stress, sleep and connection, so after a few weeks you can see whether your red weeks are also your hardest weeks emotionally. If you want a ready-made routine that pairs your morning WHOOP check with a short talk-through, the WHOOP recovery and coping check-in workflow lays out a manual handoff, since the two apps do not connect.

When to see a doctor

Recovery is a wellness estimate and cannot diagnose anything. See a doctor if you have several red days in a row with feeling unwell, if your respiratory rate or skin temperature stays off your norm for days, if your resting heart rate is unusually high for a week without a clear reason, or if you have palpitations, breathlessness or chest discomfort. If low recovery comes with weeks of low mood, constant worry or exhaustion, talk to a doctor or a licensed therapist.

A red circle tells you your body is carrying something. It does not tell you what. If the week has been heavy, say it out loud to Lovon, an AI coach you talk to by voice. Lovon does not see your WHOOP data, so you tell it what the colors have been and what is going on, and work out what to change first.