There’s a lot of hype around vitamin D. We’ve long known it’s essential for healthy bones, but over the last decade it’s been claimed low vitamin D levels are linked to a whole host of other illnesses. How clear are those links and how many of us really need vitamin D supplements? Get some rays Also known as the sunshine vitamin, there are two ways to get vitamin D. The first is the same way […]
Imagine every time you hear the word chair, your mouth fills with the taste of strawberries. Or to you, Tuesdays are red and the letter T is male, light blue, trustworthy and loyal. Sound strange? Welcome to the fascinating world of synaesthesia. Blended senses If someone scratches a blackboard with his or her nails, I taste iron. The intro of “Time” by Pink Floyd is golden yellow and blue. One synaesthete’s experiences Scientists have […]
Are you irresistible to mosquitos? We all know someone who gets covered in bites every time they venture outside. Why are some of us so much tastier than others? The deadliest animals Only female mosquitos bite: they need the protein that comes from a blood meal to make their eggs. But there are thousands of species of mosquito, and they have different ideas about who and what is tasty. Some prefer birds, some frogs, some […]
Want to be smarter and better at concentrating? Want to improve your memory and protect yourself against dementia? Brain-training programs promise all this and more – but do they work? Do brain-training games make you smarter? Image credit: dire schaefer via Flickr The claims The logic behind brain training is simple. Carry out a mental task repeatedly, and you get better at it. It could be memorising a string of numbers, or fitting together a […]
Time has stopped. The world around you has disappeared. You are completely immersed in whatever you’re doing. Anything is possible and you feel invincible. What’s going on in your brain when you’re ‘in the zone’? Going with the flow Do you call it being ‘in the zone’? Or perhaps ‘in the groove’? If you’ve ever felt completely engrossed in a task to the point that nothing could distract you, you’ve experienced what psychologists call ‘flow’. […]
Are you good with faces? Would you be able to recognise someone you’ve only met once before? Some of us are better at remembering faces than others. But most of us take for granted being able to recognise our family and friends. What if you couldn’t? Face-blindness Being able to recognise my partner, kids and parents is something I completely take for granted. But for one in fifty people, it’s by no means a given. That’s how […]
According to some headlines, red wine is the elixir of life and a miracle cure-all. Is there any truth behind the hype?
Before goji berries, chia seeds and spirulina, there was honey. The second sweetest thing found in nature, honey is the original superfood. Not only is it extremely tasty, honey has been used in medicine since ancient Egyptian times. What is it about honey that makes it so special? The magic of bee vomit The earliest written reference to honey hails from about 2000 BC: a Sumerian clay tablet refers to its use as a drug and […]
Virtually all amputees experience ongoing sensations in their missing limb, and many also experience intense pain: phantom limb pain. How on earth can you treat pain in a body part that doesn’t exist? And what is causing the pain in the first place?
Stop right now and listen. What can you hear? I’m betting you can hear something: it’s a noisy world we live in. You’re probably well aware that too much noise is bad for you. New research suggests it’s time we embraced the power of silence.