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How resilient is your immune system?

15 questions across how often you get sick, how you recover, and the stress, sleep, and lifestyle factors behind immunity. A general wellness check, not a medical diagnosis.

15 questions · about 3 min · evidence-based

Getting sick

How often do you catch colds or bugs?

The evidence behind this quiz

This assessment is built around the factors research links to immune resilience — how often you get sick and recover, plus sleep, chronic stress, and lifestyle, which are all documented to shape immune function. Some traditional immune herbs (elderberry, astragalus, echinacea) have systematic-review evidence, though results vary — the balanced NIH/NCCIH sources below explain the current state of the science. This is a general wellness check, not a medical test.

  1. The bidirectional relationship between sleep and immunity against infections — PMC / NIH
  2. Enhancing versus suppressive effects of stress on immune function — PMC / NIH
  3. Elderberry for prevention and treatment of viral respiratory illnesses: a systematic review — PMC / NIH
  4. Echinacea in respiratory infections: a mini-review of randomized controlled trials — PMC / NIH
  5. Astragalus: Usefulness and Safety — NCCIH / NIH
  6. The effect of astragalus on humoral and cellular immune response: a systematic review & meta-analysis — PubMed / NIH