Category: The Skeptic’s Guide to Sports Science

He is one of the most talented and recognizable athletes on earth. He is also one of the most well paid, earning £25 m ($30 m) per year playing soccer for Manchester United. Yet by endorsing an array of brands and businesses, including Coca-Cola, LiveScore, Free Fire, Nike, Herbalife Nutrition, and Tag Heuer, on his …

When the ancestors of modern reptiles emerged from the water and committed to air breathing, they triggered an approximate .300-million-year evolutionary journey that led us to the wonderfully complex network of tubes, membranes, and muscles we presently call the human respiratory system (West, Watson, and Fu 2007). Its primary purpose: the movement of oxygen (O2) …

The word rhetoric, derived from the Greek noun “rhetor” meaning “speaker,” was once considered the art of verbal persuasion. Up to the late nineteenth century, rhetoric played a prominent role in the western education of orators, lawyers, counselors, historians, statesmen, and poets (Conley 1990). In fact, rhetoric originated in a school of pre-Socratic philosophers, thereby …

The notion of an “exaggerated health claim” is as old as the wellness industry itself, but only in the past few decades have health claims benefited from being periodically shared by the world’s social media “influencers.” The exposure they afford a product is invaluable, amplifying the marketing claims, and occasionally conceiving new ones, to millions …

“Fructose is a poison,” he said repeatedly. “You gotta’ stop eating fruit.” “I don’t understand what you mean,” I replied. “In what way is fructose a poison?” “Well, it causes disease and … it’s a poison!” It quickly became clear that he could not articulate what he meant by “poison” or, indeed, how fructose supposedly …

On the ground floor of a shopping mall in southern California, nestled between a kiosk selling hot pretzels and another selling mobile phones, customers relax in carefully arranged leather sofas while drip bags containing clear liquids drain slowly through veins in their forearms. These “treatments,” which cost between $200 and $500, are increasingly popular, with …

Making and breaking New Year’s resolutions is a long-standing tradition of Western Culture. Starting with a clean slate is appealing because it allows us to erase errors of the past year and instill a sense of hope for the new one. Most New Year’s resolutions revolve around health and fitness, with “Doing more exercise,” “Losing …

The respiratory system has long been a target of the commercial health and fitness industry. This is due to several reasons, the most recent being the ongoing COVID-19 pandemic that has focussed attention on respiratory health and the means (proven or otherwise) to enhance it. We’ll get to that shortly. Even before COVID-19, chronic respiratory …

We’re in the midst of a pandemic! No, not that pandemic. I’m referring to the rapidly increasing worldwide prevalence of obesity, defined by the World Health Organization (WHO) as a condition of abnormal or excessive fat accumulation that presents a risk to health. Obesity is a serious problem. At the last assessment in 2016, obesity …

The health and wellness industry is worth an estimated $4 trillion. This extraordinary valuation encompasses the sale of health club memberships, exercise classes, fad diets, supplements, alternative therapies, and thousands of other products and practices, all vying for our attention. In this, the inaugural article in “The Skeptic’s Guide to Sports Science” column, I chose …