Dr Harpreet Sarna
Recent articles
The fundamentals of sleep: Why quality rest is essential for your health
Sleep isn’t just ‘switching off’, it’s active recovery for your brain and body. New research drawing on more than 47 million nights of tracked sleep suggests that building consistent sleep habits could support long-term health in a big way. Here’s what quality sleep really means, why regularity matters as much as hours, and a few simple habits to help you wind down tonight
Why do we sleep? The science behind our need for rest
The truth behind why we sleep still baffles some scientists. However, with emerging research still shedding light on this after-dark phenomenon, new findings from Vitality have gone even further to show the physical and emotional benefits of a decent night’s kip
Power napping: Is it worth it (and how do you do it properly)?
Power nap or push through? A short snooze might be the reset your brain’s asking for – but only if you keep it brief. Here’s how to nap to boost energy (not grogginess), plus what Vitality’s latest sleep research says about why consistency matters
