Your immune age changes with the clock: new study reveals timing matters

NCT ID NCT07169721

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looked at whether the time of day changes a person's 'immune age' — a blood-based score that reflects how well the immune system is aging. Researchers took blood samples from 50 healthy adults aged 20 to 69 at three different times (morning, midday, and evening) on the same day. The goal was to see if the immune age score (called IMMAX) varies with circadian rhythm, which could help improve how we measure immune health.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this could help researchers understand how to measure immune age more accurately by accounting for time-of-day effects.

What could go wrong

This is a small observational study in healthy people, not a treatment trial. The findings may not apply to people with illnesses or different lifestyles.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Leibniz Research Centre for Working and Environment and Human Factors

    Dortmund, 44139, Germany