How much exercise will maximize longevity?

In an earlier article we debunked the claim that exercise will help you lose weight. What about whether exercise will help you live longer? Now, don’t get me wrong, I am certainly not anti-exercise. There are lots of studies showing that exercise has many and varied health benefits, from improving muscle strength and balance, to decreasing the risk of fractures and delaying the onset of … Read more

Low carb vs low fat: which diet is better?

Traditional diet advice over the last fifty years, still espoused by most health authorities around the world, holds that if you want to lose weight, you need to cut down your fat intake. In the last few decades, a number of alternative diets have sprung up claiming that you should instead be cutting down your carbohydrate intake. These include the LCHF, Atkins, paleo, and more … Read more

Can vitamin D cure Covid-19?

A new article has just been published in the Journal of Steroid Biochemistry and Molecular Biology looking to see if an oral vitamin D supplement can be used to cure covid-19. Considering that vitamin D is cheap, widely available, and safe, it would be pretty miraculous if that turned out to be the case.

The article describes a randomized controlled trial that was carried out … Read more

Is the cholesterol hypothesis dead?

Is there any life left in the cholesterol hypothesis (a.k.a. the lipid hypothesis)? Is there anything left for serious scientists to cling to or is time for its mouldering corpse to end up on the trash heap of medical history, alongside lobotomy, bloodletting and the theory of the four humors? I was asked this question by a reader of this blog recently, and as it … Read more

Do face masks stop respiratory infections?

There has been a lot of controversy over whether face masks decrease the spread of respiratory infections during the covid-19 pandemic. And what is the most sensible thing to do when a topic is controversial? Look at what the evidence says!

An umbrella systematic review (a systematic review of systematic reviews) was published in Canadian Family Physician in July looking to answer this question. It … Read more

Covid-19 interview with Ben, Rob, and Robbo

A few days back I did an interview on the Ben, Rob and Robbo show about covid-19. In the interview we discuss what measures were taken in Sweden to prevent the spread of the disease, whether Sweden has now developed herd immunity, and what the role of T-cells vs antibodies is if that is the case. We also discuss whether the Swedish government intentionally “sacrificed” … Read more