For everyone · 16 min · Worth watching
What that viral TEDx talk on exosomes and ageing actually claims
Dr. Tunc Tiryaki — Plastic and reconstructive surgeon; TEDxAthens speaker
This is the talk. Not a talk — for most people arriving at this subject, it is the one they have already seen, and it has been watched well over a million times. If you want to know what the general public believes about exosomes and ageing, this is where a good share of that belief came from.
We are not going to summarise it, and not only because the licence forbids it. A sixteen-minute talk compressed into four paragraphs by the company that sells the material is not a service to anybody. Watch it whole or not at all.
Read TED's note before you read ours
TED attached a notice to this video themselves. It is quoted above, unedited. Two things in it are worth slowing down for: personal views, and emerging field of study. A talk on that stage carries an authority the stage lends it, and TED is telling you not to mistake the lighting for the evidence.
What to watch for
- Where the talk moves from mechanism to outcome. Mechanism in a dish is well-evidenced and interesting; what it means for a person is a separate claim needing separate evidence.
- Whether a population is ever named — how many people, over what period, measured against what.
- The difference between what he has observed in his own practice and what has been established in trials. Both are worth hearing; they are not the same kind of thing.
Source licence: CC BY-NC-ND (TEDx standard terms). Embedded and credited; not reproduced, not summarised, not adapted.

