How Do Your Health Metrics Compare?

Your resting heart rate tracks how efficiently your heart pumps when you are at complete rest. Lower values typically indicate a more powerful and resilient cardiovascular system. LongevLab compares your nightly averages with percentile bands sourced from large-scale datasets, helping you see whether your heart is beating younger or older than your chronological age.

Source benchmarks: Cleveland Clinic, CDC National Health Statistics Reports.

Heart Rate Variability reflects the balance between the sympathetic and parasympathetic branches of your autonomic nervous system. Higher variability signals adaptability, resilience, and strong recovery capacity. Because HRV naturally declines with age, LongevLab visualizes percentile curves so you can see if your nervous system is trending closer to elite, average, or stressed cohorts.

Population medians compiled from Kubios, Welltory, and peer-reviewed ANS research.

VO₂ Max is the gold-standard indicator of cardiovascular health. It measures how much oxygen your body can use during intense exercise and is one of the strongest predictors of healthy longevity. The LongevLab benchmark table aligns with ACSM categories so you can spot how your score compares with peers and what improvements could mean for your long-term resilience.

Guidelines adapted from ACSM and Apple Watch Cardio Fitness documentation.

Heart Rate Recovery measures how quickly your heart rate drops in the first minute after exercise. Faster declines suggest that your autonomic nervous system can switch from performance mode back to recovery mode with ease. By comparing your recovery drop with the LongevLab percentile chart, you can see whether your nervous system is adapting to training or if you need more restorative days.

Reference data: American Heart Association, Princeton Longevity Center, Apple Cardio Recovery research.

Deep Sleep rebuilds tissues and immune function, while REM sleep supports cognitive processing and emotional balance. LongevLab contrasts your nightly percentages with the optimal ranges—roughly 18–23% in Deep and 20–25% in REM—so you can quickly spot whether stress, travel, or habits are eroding your restorative capacity.

Derived from Sleep Foundation, Healthline, and clinical sleep architecture research.

A calm, steady respiratory rate during sleep (generally 12–20 breaths per minute for healthy adults) signals efficient cardiorespiratory function. LongevLab visualizes the normative range so you can see when illness, allergies, or overtraining push you outside of the optimal band.

Benchmarks informed by SleepApnea.org, CDC clinical references, and WHO guidance.

BMI does not capture the nuance of muscle versus fat, yet it remains a useful screening tool to flag potential metabolic risk. LongevLab maps your BMI to WHO categories so you can see whether you are trending toward underweight, healthy, overweight, or obese classifications.

Categories sourced from WHO and CDC adult BMI frameworks.

Activity minutes and active calories reveal how consistently you meet global movement guidelines. The LongevLab guidelines table consolidates WHO and ACSM recommendations—150–300 minutes of moderate or 75–150 minutes of vigorous activity per week—so you can track how your rolling averages compare.

Guidelines referenced from WHO and ACSM physical activity recommendations.

Apple Watch gathers wrist temperature deviations during sleep. Stable readings suggest your body is in balance, whereas elevated patterns can precede illness or indicate lingering inflammation. The LongevLab variance table highlights what "normal" fluctuation looks like so you can respond quickly when the curve drifts upward.

References: Penn Medicine wrist temperature study, Labroots clinical summaries.

Inside the LongevLab app, all of these comparison benchmarks are grouped in the Population Benchmarks module. Toggle between them to evaluate how your cardiovascular, recovery, and metabolic systems interact. When one metric flags a concern—say, a higher respiratory rate paired with a falling HRV—you can cross-reference the others to understand the broader physiological story.