How to knock decades off your biological age, revealed by Britain's top longevity doctor: Everyday habit that causes catastrophe, the treatments and supplements he swears by... and the tests you must have

Daily Mail // Health

How to knock decades off your biological age, revealed by Britain's top longevity doctor: Everyday habit that causes catastrophe, the treatments and supplements he swears by... and the tests you must have

Tuesday 6th January 2026, 5:00PM

I'm perched in a cylindrical chamber that looks something like a mobile sauna cross-bred with a submarine, with a plastic mask clamped to my face and gulping pure oxygen.

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