The Science of Switch On

Resilient Nutrition

THE RATIONALE BEHIND SWITCH ON A huge number of us don’t look, feel or perform our best because we don’t routinely sleep well. There are many forms of sleep problems. Some sleep issues are common, such as recurrent sleep restriction (not getting as much sleep as needed) and “social jetlag” (shifting sleep times between workdays and work-free days). Other sleep problems are more debilitating, however, and these include 6 broad categories of sleep disorders (insomnia, circadian rhythm sleep-wake disorders, sleep-related breathing disorders, sleep-related movement disorders, parasomnias, disorders of hypersomnolence). Perhaps unsurprisingly, some sleep problems have been exacerbated by COVID-19 lockdowns....

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The human body is astonishingly resilient...

Resilient Nutrition

WHEN IT GETS WHAT IT NEEDS Life on Earth has evolved over several billion years. During this process evolution has produced a wonderful diversity of living beings, each of which has progressed through a huge number of iterations to tailor it to survive in its ecological niche. Some organisms fare better than others, and we humans have in many ways been uniquely successful - so successful in fact that we now live in the Anthropocene, a period in which our species is strongly affecting ecosystems and the climate across the globe. It is in no small part the resilience of...

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What Happens to Your Body When You Go Without Food?

Greg Potter

Many of us are in privileged positions: Whereas it was presumably common for some of our ancestors to experience famine, nowadays food is so abundant that people deliberately fast for extended periods for health benefits. This practice is rooted in science, for intelligent use of fasting can be therapeutic. The punctuated stress of fasting can trigger myriad adaptations that bolster resilience, protecting against a range of future stressors, and people can successfully use fasts of 5 to 21 days multiple times within a single year. We should not take our good fortune for granted, however. The Ukraine War, climate change,...

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L-Tyrosine: Effects on Exercise and Health, and How to Take It

Greg Potter

In Part 1 of this series, we looked at how L-tyrosine affects cognitive performance, mood, and emotion regulation. Today we’ll explore other effects of L-tyrosine, including whether it affects your exercise performance, your ability to regulate your body temperature, and your thyroid function. We’ll end by assessing the best ways to take L-tyrosine, and whether some people should think twice before they try it.     Key takeaways L-tyrosine might be helpful for exercise done in cold conditions that requires fine-motor skills and/or a lot of cognitive effort. If you’re middle aged or older, taking L-tyrosine before cold exposure can...

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L-Tyrosine: Effects on Memory, Mood, ADHD, and More

Greg Potter

Lots of people have recently become interested in whether supplementing with L-tyrosine can improve performance at work and lift mood, in part because of the opinions put forward by scientists and influencers on podcasts and social media. While tuning into commentary by these people, I’ve at times felt frustrated by their lack of depth and clarity, so in the next 2 blogs we’ll focus on what the science of L-tyrosine actually shows. The good news is that L-tyrosine can be handy in many contexts. Used intelligently, it can help you beat brain fog and more. In this blog, we’ll focus on the effects of...

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Perform Better on Less Sleep? All About Creatine and Sleep

Greg Potter

Now and then, you don’t get enough sleep. When that happens once, it doesn’t affect you much. But while you might feel like the effects of back-to-back nights of poor sleep only accumulate to a point, the gloomy reality is that they continue to build. So, wouldn’t it be great if you could take something to help you minimise the results of insufficient sleep? Better yet, what if there was something that enabled you to perform better on less sleep? Some fascinating research suggests there just might be. Its name is creatine monohydrate. While there’s a lot to learn about...

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