Testosterone and combat readiness: what does the evidence really show?

Pete Hegseth, the US defence secretary, recently announced plans to measure testosterone levels in US soldiers with a promise of “ensuring you have the right testosterone levels to operate at your absolute best”. Soldiers found to have low testosterone would be offered treatment, although accepting it would remain voluntary. The announcement has reignited debate about […]

Why you keep buying books you don’t read – and why it feels so good

Gorgev/Shutterstock.com At busy times, I find I simply cannot read as much as I would like to. Life has a habit of filling every available hour with work, meetings, emails, chores, errands and deadlines. Standing in one of my natural habitats – a bookshop – it is frustrating to see so many things I want […]

Why do some people who trust in science also believe in scientific conspiracy theories?

Pro-science protesters at the second annual Portland March for Science, Oregon 2018. Png Studio Photography/Shutterstock In a world where trust in institutions is mostly in decline, levels of trust in science remain relatively high. Yet at the same time, belief in scientific conspiracy theories, such as hushed-up effects of vaccines or aeroplane “chemtrails”, is also […]

How to know when fruit and veg are still safe to eat – and when they should be binned

Overripe fruit and veg can harbour harmful bacteria. Krakenimages.com/ Shutterstock Whether it’s trimming off a piece of mushy parsnip or cutting away a slightly mouldy bit of apple, many of us have used produce long after their peak of freshness. While fruits and veggies are important for our health, they’re also highly susceptible to bacteria, […]

Iran is turning into the sort of ‘forever war’ that Donald Trump promised to avoid

When Donald Trump returned to the White House, he promised to avoid another Middle Eastern “forever war”. After the costly experiences of Iraq and Afghanistan, that pledge resonated with an American public weary of prolonged military intervention. For a brief moment, it appeared that this promise might be realised. The memorandum of understanding (MoU) signed […]

K-pop is becoming more international – what that means for the K in the genre

K-pop has become a multibillion-dollar global success. This growth has been driven by viral choreography, high-concept music videos and a highly passionate fanbase that functions like an unofficial global marketing team. Wanting to expand its international appeal, the genre is opening up to more non-Korean idols (the name for K-pop performers) than ever. This desire […]

‘Manchesterism’ is bigger than Andy Burnham

Aerial image of part of Manchester’s city centre at dusk. Shutterstock/Bardhok Ndoji Walk along Manchester’s Oxford Road on a weekday morning and it is difficult not to notice the northern English city’s confidence. Home to two universities, major NHS hospitals and world-leading research institutions, the Oxford Road Corridor is underpinned by a partnership that brings […]