Skip to main content

The First 20 Minutes – Gretchen Reynolds ****

Anyone who knows the reviewer would raise an eyebrow about my reading a book on how to  exercise better, but this is subtitled ‘The surprising science of how we can exercise better, train smarter and live longer’. Gretchen Reynolds delivers an impressive balance between exploring scientific studies in the area of exercise and practical guidance for everyday folk.
One problem with studies in health and fitness is that it isn’t always easy to tell the difference between a small subjective study with insufficient data to draw an significant conclusions and large studies that have been replicated and confirmed in their findings. It is also often quite difficult to distinguish pick out where the link between exercise and health is causal and where it is just correlated (i.e. statistically linked in some way, but the exercise didn’t actually cause the health benefits, because, say, people who do this exercise also tend to have a better lifestyle). Reynolds is reasonably good in this respect, usually making it clear where a study is insufficient to draw concrete conclusions, but the lack of certainly on the quality of the data in some cases is probably the weakest aspect of the findings.
Even so, this is a very readable book, perhaps particularly for someone who hates exercise. It also delivers a fair number of surprises – for instance that static stretching is actually damaging rather than beneficial, and that Andy Murray’s famed ice baths are nothing more than a placebo. Sorry, Andy, won’t be joining you. Whether you are interested in the science of the human body or want to improve your fitness with minimum effort, this book is well worth a look.

Paperback 

Kindle 
Using these links earns us commission at no cost to you
Review by Brian Clegg

Comments

Popular posts from this blog

Rakhat-Bi Abdyssagin Five Way Interview

Rakhat-Bi Abdyssagin (born in 1999) is a distinguished composer, concert pianist, music theorist and researcher. Three of his piano CDs have been released in Germany. He started his undergraduate degree at the age of 13 in Kazakhstan, and having completed three musical doctorates in prominent Italian music institutions at the age of 20, he has mastered advanced composition techniques. In 2024 he completed a PhD in music at the University of St Andrews / Royal Conservatoire of Scotland (researching timbre-texture co-ordinate in avant- garde music), and was awarded The Silver Medal of The Worshipful Company of Musicians, London. He has held visiting affiliations at the Universities of Oxford, Cambridge and UCL, and has been lecturing and giving talks internationally since the age of 13. His latest book is Quantum Mechanics and Avant Garde Music . What links quantum physics and avant-garde music? The entire book is devoted to this question. To put it briefly, there are many different link...

Should we question science?

I was surprised recently by something Simon Singh put on X about Sabine Hossenfelder. I have huge admiration for Simon, but I also have a lot of respect for Sabine. She has written two excellent books and has been helpful to me with a number of physics queries - she also had a really interesting blog, and has now become particularly successful with her science videos. This is where I'm afraid she lost me as audience, as I find video a very unsatisfactory medium to take in information - but I know it has mass appeal. This meant I was concerned by Simon's tweet (or whatever we are supposed to call posts on X) saying 'The Problem With Sabine Hossenfelder: if you are a fan of SH... then this is worth watching.' He was referencing a video from 'Professor Dave Explains' - I'm not familiar with Professor Dave (aka Dave Farina, who apparently isn't a professor, which is perhaps a bit unfortunate for someone calling out fakes), but his videos are popular and he...

Everything is Predictable - Tom Chivers *****

There's a stereotype of computer users: Mac users are creative and cool, while PC users are businesslike and unimaginative. Less well-known is that the world of statistics has an equivalent division. Bayesians are the Mac users of the stats world, where frequentists are the PC people. This book sets out to show why Bayesians are not just cool, but also mostly right. Tom Chivers does an excellent job of giving us some historical background, then dives into two key aspects of the use of statistics. These are in science, where the standard approach is frequentist and Bayes only creeps into a few specific applications, such as the accuracy of medical tests, and in decision theory where Bayes is dominant. If this all sounds very dry and unexciting, it's quite the reverse. I admit, I love probability and statistics, and I am something of a closet Bayesian*), but Chivers' light and entertaining style means that what could have been the mathematical equivalent of debating angels on...