David Castle

Anabolic steroid use is becoming increasingly visible in gyms and on social media. A men’s health doctor explains why more men are turning to performance-enhancing drugs, the hidden physical and psychological risks, and why judgement alone isn’t the answe... See more

Creatine is one of the world’s most researched supplements, with studies suggesting benefits that extend far beyond the gym. So why isn’t it routinely recommended by doctors? The answer has less to do with creatine itself than with how medical advice evol... See more

Longer days, more sunshine, better sleep and even warmer temperatures may all boost libido. Doctors explain why many people feel more interested in sex during summer – and how to enjoy it safely As the UK reaches the height of summer following weeks of wa... See more

With wedding speculation surrounding Taylor Swift dominating headlines, there’s another side to the global superstar that’s just as inspiring: the incredible fitness that allowed her to perform more than three hours a night on the record-breaking Eras Tou... See more

Forget your bench press and your 5K time. This surprisingly simple test could reveal more about how well you’re likely to age than many traditional measures of fitness A few months ago I watched a friend spend thousands on a new road bike. Carbon frame, e... See more