Your Blood Reveals Your True Biological Age

Imagine your blood could reveal your true biological age — independent of the calendar. A study shows: that is precisely possible.

Science has long known that ageing is more than wrinkles and grey hair. But researchers have now discovered that our blood changes throughout life in very specific waves. These proteome waves — that is, changes in the protein composition of the blood — occur particularly clearly in three phases of life: at around 34, 60 and 78 years of age.

The international research team analysed nearly 3,000 different proteins in the blood of more than 4,200 people aged between 18 and 95. The remarkable finding: most changes do not proceed gradually, but in waves, with peaks precisely at the ages mentioned above.

Based on the protein data, the scientists developed a model capable of predicting a person's biological age with remarkable precision — a kind of "proteome clock". Those who appear younger according to this model than their chronological age tend to also show better physical and cognitive performance.

Such models could in future help to detect age-related conditions such as Alzheimer's, diabetes or heart disease early — before symptoms even appear.

This is exactly where ideas from modern ageing research come in: substances or lifestyle interventions that inhibit mTOR (such as fasting, rapamycin, or certain plant compounds) or activate the AMPK metabolic pathway (for example through exercise, metformin, or resveratrol and other plant compounds) are considered potentially life-extending.

Knowing when during life particularly strong changes occur in the body would allow preventive action to be personalised: targeted at critical phases, rather than continuous or random. In this way, targeted interventions could buffer the natural "ageing surge" — and keep the organism in a healthy equilibrium for longer.

The study makes it clear: ageing does not proceed evenly — it is more like "waves that the body rides". Those who know these waves can work with them rather than against them. And that opens up perhaps the most important perspective: ageing is not fate. It is a process — and processes can be influenced.

Volker's comment: Unfortunately, I left the first major ageing wave at 34 well behind me long ago. At that time, intensive prevention and action would have been especially appropriate. Perhaps I could have softened it somewhat. Sadly, I missed that window. Well — if only I had had today's knowledge back then. But nobody could have told me any of this, because when I was 34, it simply wasn't known yet. Neither that such "ageing surges" exist and when they occur, nor what could have been done about them. Science knew almost nothing yet about mTOR and AMPK (FOXO3, zombie cells, autophagy, etc.) and ageing. I hope that I can spare one or two people this ignorance here — so that in a few years nobody comes to me and complains, as I do now: "Why did nobody tell me?" But after one wave comes the next. And the good news about cell regeneration and cell repair: it can be optimised, improved and repaired at any time — but please not continuously, rather in phases. My recommendation: 4 days per month.