Tommy Wood
speaker
390 appearances
1 recordings
1 series
first heard Apr 2026
last heard 12 Apr
Tommy Wood’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Apr 2026 with 1.
Appearances
They take their sleep more seriously.
That can certainly be useful, but I think we're still struggling to figure out exactly, what are we measuring?
What does it mean?
How do we act on it?
We know for sure, and this has really shifted over the last five or 10 years.
And maybe it's even hard to say no for sure, because these are sort of like statistical estimates based on best available data and all that kind of stuff that we know from epidemiology studies.
We believe that a significant proportion of dementias are preventable.
And the estimates differ from study to study, but it's something like 45%.
That's Professor Jill Livingston's estimate from the Lancet Commission on Dementia Prevention.
Other studies like those that are work done by Professor Yintai Yu, they'd use the UK Biobank to estimate that maybe more than 70% of dementias are preventable.
And we're largely talking Alzheimer's disease and vascular dementia, which between them make up 70% to 90% of dementia cases.
And probably about at least half of those preventable cases are due to modifiable factors, things that we can address ourselves, smoking, alcohol, hearing loss, physical inactivity, obesity, high blood pressure, diabetes.
So that gives us a lot of scope to very dramatically decrease our risk.
And at the same time, and some of this actually requires appreciating studies that were done
you know, 50 years ago, we know that cognitive function, as people go from their 50s, 60s, 70s into their 80s, most people actually maintain stable cognitive function, or it should be possible to maintain stable cognitive function into your sort of eighth, ninth decade.
we don't really kind of internalize that.
We expect decline.
And because we expect decline, we're less likely to engage in those things that I just mentioned as risk factors for dementia.
So I think there's this combination of appreciating that this risk is modifiable, that there's things that we can do, and knowing that if we take those actions, we will expect to see much more stable cognitive function later into life than maybe we thought was possible.
Yeah.
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