Lifespan
What credible researchers and clinicians are saying about the science of ageing well, read sceptically so you don't have to.
Two kinds of pieces, both tagged. Updates are short reads on a single new finding or claim, published as the research comes out. Foundations are longer pieces on a whole topic, the science that does not change week to week.
The newest research
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L-glutamine after 50: what the supplement does, and where the evidence stops
The most abundant amino acid in your body is sold for leaky gut, immune support, muscle recovery and detoxification. The trial evidence is narrower than the marketing, and the case for routine use in a healthy person eating enough protein is weak.
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The MIND diet: a reasonable way to eat, not a dementia strategy
A decade of repeated brain scans found slower grey matter loss in the people who ate closest to the MIND diet. What that is worth to you, set against a null trial and against the risk factors that carry better evidence.
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Semaglutide and the GLP-1 drugs: the benefits, and what they cost muscle and bone
They produce large weight loss and, in people with heart disease, fewer heart attacks and strokes. The cost falls on muscle and bone, the tissues a long-term plan is built on, and most of it comes due when you stop.
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Methylated vitamins: who they help, and how to know if they suit your biology
The supplement aisle tells you MTHFR means you need methylated B vitamins. The evidence is narrower than that, and the test you need is cheaper.
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Back from the precipice: ageing well is a strategy, not a magic bullet
I started at 38 because the system had nothing for me. Twenty years on, the lesson is not any one intervention. It is learning to think for yourself and refusing the magic bullet.
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Immune ageing: what wears it down, and what helps
The immune system ages in two ways. What adds to the pressure, why exercise is the strongest lever, and how much omega-3 and spermidine add.
The SLOWageing update
One email a month: what the research says, and what you can do now. No selling, no sponsorships.
The last SLOWageing update
5 September 2026: Your biological age: what the clocks can and cannot tell you
What the research says: the new clocks, and the three generations behind them
What do the clocks predict? Two large women's studies this year sharpen the answer
What you can do now: exercise, a Mediterranean-style diet and sleep regularity lead; commercial biological age tests do not