Stuart McDonald
@actuarybyday.bsky.social
6.4K followers 570 following 690 posts
Partner at LCP. Actuary. Deputy Chair of the CMI. MBE for services to Public Health. Expect statistics and data.
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actuarybyday.bsky.social
🎙️ New podcast series!

In 'Beyond Curious with LCP' my guests and I will explore how changing demographic trends are reshaping our lives. We'll discuss impacts on pensions, healthcare, workplaces and the economy.

🎧 Listen here: www.lcp.com/en/podcasts/...

#Longevity #Demographics #AgeingPopulation
The demographic trends shaping our future
In this episode, Jill Ampleford and Stuart McDonald discuss the upcoming season exploring the demographic trends shaping our future – from population health and life expectancy to migration and fertil...
www.lcp.com
actuarybyday.bsky.social
Thanks Clare. I hadn’t managed to track this down but it looks like I’d inferred the logic correctly from bits and bobs written elsewhere. Lots of parallels in here with the way I tackled the question using recent data.
actuarybyday.bsky.social
Total Fertility Rate (TFR, in your chart) can fall for 2 reasons:
- women having fewer kids
- women having kids later

The second reason explains much of the fall shown.

An alternative is Cohort Fertility Rate. This is more robust but lags.

Think of TFR a provisional early indicator, nothing more.
actuarybyday.bsky.social
Vaping is not without harm. We know that already. But all the evidence points to significant harm reduction compared to combustible cigarettes.
actuarybyday.bsky.social
I disagree about the smoking ban. This can only help to get these teenage numbers to zero and keep them there. It will only need enforcement for a decade or so as the key is to eliminate teenage smoking. No-one takes up smoking as an adult.
actuarybyday.bsky.social
Vaping is less common than smoking used to be. It is also less harmful.

bsky.app/profile/actu...
actuarybyday.bsky.social
It is less common and is less harmful.
actuarybyday.bsky.social
No it isn’t. Vaping is not harm free but it is significantly less harmful than smoking.

bsky.app/profile/actu...
actuarybyday.bsky.social
It is less common and is less harmful.
actuarybyday.bsky.social
It is less common and is less harmful.
actuarybyday.bsky.social
When I was 15, more than 1-in-5 boys and 1-in-4 girls my age regularly smoked. Phenomenal progress!
actuarybyday.bsky.social
actuarybyday.bsky.social
In need of some good news? Smoking has now been virtually eliminated among school age kids in England!

(Yes, some of this is a shift to vaping but still...)

assets.publishing.service.gov.uk/media/68d3ee...
actuarybyday.bsky.social
In need of some good news? Smoking has now been virtually eliminated among school age kids in England!

(Yes, some of this is a shift to vaping but still...)

assets.publishing.service.gov.uk/media/68d3ee...
actuarybyday.bsky.social
An absolute goldmine of health and mortality data 📊

Well done to all involved in this.
statsgeekclare.bsky.social
New CMO report out today on health trends and variation in England. My team delivered this using a RAP developed in R, which made a nice change from lots of people running around putting numbers into excel then pasting into powerpoint... Was not without challenges though! www.gov.uk/government/p...
Health trends and variation in England 2025: a Chief Medical Officer report
An overview of the health of England’s population, including trends over time and geographical variation.
www.gov.uk
Reposted by Stuart McDonald
alastairmeeks.bsky.social
Fair play to Sadiq Khan. To live rent-free inside the head of the president of the USA is a massive achievement for any Mayor of London.
actuarybyday.bsky.social
You can listen to episode 9 of Beyond Curious here.

This is the last episode in the current series. If you listened, I'd love to hear your thoughts.
bsky.app/profile/actu...
Reposted by Stuart McDonald
drrachelclarke.com
Please know that this is Trump scaremongering.

There is no good scientific evidence linking paracetamol (Tylenol) to autism.

A 2024 Swedish study of 2.4 million births found no relationship whatsoever between exposure to paracetamol in utero & subsequent autism.
www.theguardian.com/us-news/2025...
Trump attacks Tylenol as officials unveil highly contentious conclusions on autism
President says acetaminophen – also known as paracetamol - increases risk when taken by pregnant women, assertion contradicted by research
www.theguardian.com
Reposted by Stuart McDonald
robfordmancs.bsky.social
I'll have more to say on Reform's proposals to scrap ILR at some point but for now I'll just note this - anyone telling you this is a popular idea doesn't know the polling. Overwhelming majority of public back giving people who work and pay taxes most or all rights after 5 years or less
Reposted by Stuart McDonald
stevewebb1.bsky.social
Average earnings up 4.7% in latest ONS figures - this is likely to drive the 'triple lock' increase next April. New state pension will be less than £1 per week under the income tax threshold in 2026, and will exceed it in 2027.
actuarybyday.bsky.social
Episode 8 of 'Beyond Curious' is out now:
bsky.app/profile/actu...
actuarybyday.bsky.social
Why do women retire with half the pension wealth of men?

🎙️ In episode 8 I chat with Alexandra Miles about:

🔎 The pensions gap & structural inequalities
🌍 Migration, longevity & fiscal sustainability
📜 Lessons from the past and overseas
🧠 AI & the future of work
www.lcp.com/en/podcasts/...
Closing the Pension Gap
Stuart McDonald chats with Alexandra Miles from Legal & General Investment Management about pension inequality, changing retirement trends, and ways to improve financial wellbeing across diverse caree...
www.lcp.com
actuarybyday.bsky.social
Why do women retire with half the pension wealth of men?

🎙️ In episode 8 I chat with Alexandra Miles about:

🔎 The pensions gap & structural inequalities
🌍 Migration, longevity & fiscal sustainability
📜 Lessons from the past and overseas
🧠 AI & the future of work
www.lcp.com/en/podcasts/...
Closing the Pension Gap
Stuart McDonald chats with Alexandra Miles from Legal & General Investment Management about pension inequality, changing retirement trends, and ways to improve financial wellbeing across diverse caree...
www.lcp.com
actuarybyday.bsky.social
It’s because of the method of calculation. These are so called ‘period life expectancies’ which means that in-year death rates are assumed to apply in all future years. So a shock like a pandemic shows up at the same time for everyone.