Longevity UniversityAsk the evidence

Health tests and calculators

Tools backed by strong research. Each shows what your result meant in the studies, with the studies themselves.

NewFunctional age checkReflexes, memory, hearing, eyesight, leg strength, balance, smell and taste in one session, each compared with people your age.Start the check

Tests you can do at home

  1. Sitting-rising testLower scores went with higher death rates over six years in adults 51 to 80.2 min · A clear patch of floor
  2. Three-minute step testFitness from how high your pulse is just after three minutes of stepping. Fitter people lived longer.5 min · A sturdy step or box about 16 inches (41 cm) high
  3. Reaction timeHow quickly you react. Faster reaction times went with lower death rates.1 min · Nothing; works best on a computer

Calculators for your own numbers

  1. Heart health scoreThe American Heart Association's score out of 100. People with high scores lived years longer.5 min · Your weight and height; blood pressure, cholesterol and blood sugar if you have them
  2. Fitness from a one-mile walkEstimates your VO2 max, the fitness measure most strongly tied to how long people live.20 min · A measured mile (a running track is 4 laps) and a watch
  3. How old do your labs look?Turns nine routine blood tests into an age. An older blood age went with higher death rates.3 min · A recent blood test report with a metabolic panel, blood count and CRP
  4. Kidney functionYour eGFR from a creatinine result. A lower eGFR went with higher death rates and more heart disease.2 min · A recent blood test with creatinine; a urine albumin result if you have one

Hands-on checks

Short checks that use your camera, speakers or screen. The research behind some is thinner, and each page says how much it shows.

  1. Focus challengeReaction time and a color-word attention game. Slower reaction times went with higher death rates.3 min · Nothing; a keyboard works too
  2. Pulse and breathing resetYour pulse from your camera, a few minutes of guided slow breathing, then your pulse again.4 min · A camera: your phone's or your computer's
  3. Pulse from your cameraYour resting heart rate, read through your fingertip by your phone's camera.1 min · A phone with a camera on the back
  4. Balance swayYour phone measures how much you sway standing still. People who swayed more fell more.2 min · A phone, and a wall or counter beside you
  5. Highest pitch you can hearA tone sweeps up to the top of human hearing, one ear at a time. The highest pitches fade first.2 min · Headphones
  6. Amsler gridA grid that shows wavy or missing areas in your central vision, an early sign of macular degeneration.2 min · Your reading glasses, if you use them
  7. Brain speedMatch symbols to numbers for 90 seconds. Slower scores went with higher death and disability rates.3 min · Nothing; a keyboard works too
  8. Memory spanRepeat a sequence of blocks in order. The longest you can hold shortens with age.3 min · Nothing
  9. Eyesight ageHow close you can focus on small text. It shrinks with age until about 60.2 min · Your phone's front camera, or a ruler
  10. Smell testName 16 smells from a kit. A poor sense of smell went with higher death rates in older adults.6 min · The Sniffin' Sticks smell kit
  11. Taste testName the taste of 16 strips, from faint to strong. Taste fades slowly with age.6 min · A taste strip kit and a glass of water
  12. How old do you look?An age model reads a photo of your face on your own device. How old you look isn't a proven health measure.1 min · A camera or a photo

Your results stay with you. Nothing you enter, and no photo, leaves your device. Signed in, you can save a result to watch it change.

These are checks, not a diagnosis. Stop if anything hurts or you feel dizzy, and take a result that worries you to your clinician.