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Jordie Li

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Jordie Li•6 days ago
Evidence & Public Policytobacco control

Countries making progress on "sin taxes"?

A new WHO paper is out, reviewing tobacco tax reform in 15 countries:

Fifteen years of tobacco tax reform show countries can make harmful products less affordable

The basic idea is: higher prices are generally the most straightforward deterrent to smoking, and so governments should tax cigarettes appropriately if it wants to reduce smoking.

Some key points from the WHO review:

  • Overall point: bold, regular tax increases on harmful products directly reduce consumption and save lives; while small, irregular taxes are easily eroded by inflation.

  • ​The Philippines Success Story: Following major reforms in 2013, cigarette prices in the Philippines rose 638%, smoking prevalence dropped by roughly one-third, and the tax revenue was used to fund universal health coverage.

  • Not as rosey elsewhere: In several countries though, prices and taxes remained stagnant.

  • ​Sugary Drinks and Alcohol are Untapped: Taxes on these products remain globally low (the median sugary drink excise tax is just 2.4% of retail price), and in many countries, these products are actually becoming more affordable.

  • ​Smart Tax Design is Crucial: The most effective taxes are substantial, simplify the tax structure, rely on specific excise taxes, and automatically adjust for both inflation and income growth.

The other reason tobacco taxes are attractive to policymakers, is that it generally raises tax revenue. Though taxes reduce consumption, cigarettes are price inelastic; and so overall tax collection increases as well.

Another general thought: context obviously matters, and so what policies and strategies to pursue of course depends on the country you are looking at. Nonetheless the review is a helpful synthesis of experiences in those 15 countries, and carries important broad lessons.

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Jordie Li•6 days ago
Researching Malaysiapublic health

Cigarettes getting cheaper in Malaysia?

A comparison of food prices vs cigarette prices in Malaysia, since 2015. By think tank SERI.

Adjusting for inflation, food prices have still gotten more expensive, while cigarettes have actually gotten cheaper.

A public health concern.

Link to the full policy brief: 88e7d5f7-2a68-480e-964e-1a708287b613.filesusr.com

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Jordie Li•a month ago

Social media negatively affects adolescent girls in particular

This 2022 study (a cross-sectional and longitudinal dataset analysis) found social media use is associated with negative impacts among adolescents – and especially younger adolescent females.

The association seems to be weaker for adults.

Side point: the authors had initially done another broader study, focusing on screen time (including social media but also other activities like video calls, homework).

This initially study didn't find any meaningful effects (between screen time and wellbeing). Following some debate, the authors conducted the 2022 study -- that was more specific to social media.

From Orben et al. 2022. The higher the social media use, the lower (generally) the "life satisfaction score" -- especially for girls.
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Jordie Li•a month ago

Creatine for cognitive function?

Eating creatine for physical health has become an accepted thing. But what about for the brain?

A while back, I watched this Huberman Labs episode, that covered this.Huberman podcast (with guest Rhonda Patrick) And I wanted to look at the research myself: here's one 2024 systematic review, covering 16 randomised control trials with a total of 492 participants.

You can see the full methodology and results in the credo summary of the paper -- but essentially the review concluded that creatine did have benefits for cognition.

As per the credo summary tldr:

This supplement may modestly improve memory and help people complete attention and fast-thinking tasks more quickly.

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Jordie Li•2 months ago

Hottest place in the galaxy... Oxfordshire?

Any Infinite Monkey Cage listeners here? Was listening to this episode on Fusion, and they talked about a nuclear fusion reactor in Oxfordshire.

As I understand it, to enable fusion, you need an extremely hot environment.

In the Oxfordshire reactor, scientists conducted an experiment with temperatures so high, that it momentarily became the hottest place in the solar system. Hotter than the sun.

How cool is that. And I found this paper, of a particularly well-known experiment using the reactor (scientists were able to generate a record amount of energy from fusion).

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Jordie Li•a month ago
Podcasts We Lovehuberman labs

Sharing here -- excerpt from Huberman Labs podcast, on creatine and cognition.

Jordie Li•a month ago

Creatine for cognitive function?

Eating creatine for physical health has become an accepted thing. But what about for the brain?

A while back, I watched this Huberman Labs episode, that covered this.Huberman podcast (with guest Rhonda Patrick) And I wanted to look at the research myself: here's one 2024 systematic review, covering 16 randomised control trials with a total of 492 participants.

You can see the full methodology and results in the credo summary of the paper -- but essentially the review concluded that creatine did have benefits for cognition.

As per the credo summary tldr:

This supplement may modestly improve memory and help people complete attention and fast-thinking tasks more quickly.

0
Jordie Li•4 months ago

How the "Big Bang" got its name

This story comes up repeatedly (including in the latest StarTalk episode).

Basically physicist Fred Hoyle, who did not believe in an expanding universe, inadvertently coined the "Big Bang". He used the term mockingly on a TV show, and it stuck.

Apparently though, it took a while for the term to really catch on. Found this article, that documents the story.

Really interesting story. Keen to read the actual paper (unfortunately paywalled).

Fred Hoyle. Getty Images.
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