An Immune Signature

Your immune system can predict whether you’ll get sick 10 years from now.

For a decade, Darragh Duffy, a researcher at the Institut Pasteur, and his team tracked more than 400 healthy people to understand how immunity changes with age.

Here’s what they discovered: as you age, your antibodies change. Those against the flu and the coronavirus increase, while those against tetanus decrease.

Vaccine boosters are therefore essential.

But the most fascinating part? By exposing blood to certain microbes, Darragh and his team can predict who will get sick in 10 years. There’s even a revolutionary indicator: biological age, which is more reliable than your actual age for assessing this risk.

In short: your immunity leaves a unique fingerprint. And today, we know how.

(video in french, english subtitles available translated by AI)