Can sleep masks give you zits? 12 things experts want you to know about wearing one

I asked sleep experts – plus a dermatologist and ophthalmologist – to answer this question and more

Is it true that … vitamin C serums provide added sun protection?

This antioxidant may enhance the protection sunscreens provide, but it is no substitute for them

A new start after 60: I spent eight years thinking I had Parkinson’s. Then doctors ‘de-diagnosed’ me

Mike Bell was 53 when he got the diagnosis that changed his life – and 61 when he learned it was wrong. He felt relieved, but also totally adrift

This $380 foldable kayak fits in my Prius and goes from backseat to lake in 10 minutes

The Tucktec 10 Pro is compact enough for a small car, quick enough for spontaneous trips, and inexpensive enough to open boating to everyone

Do you need electrolytes? Will tea cool you down? Is it safe to drink beer? How to stay hydrated in a heatwave

The hotter it gets, the faster our bodies lose water. Obviously, we need to replace it – but is anything better than plain H₂O? And does timing matter? Here’s what the science says

Prime Day ends today – here are the 52 best deals to scoop up before they’re gone

Amazon Prime Day ends tonight. The Filter US vetted sales on the Our Place Titanium Always Pan Pro, Hatch Sunrise Alarm Clock and the Ninja Creami ice cream maker and more

The Guardian view on the Ockenden maternity review: lifting standards must be the number one priority

Editorial: Families are right to be angry about devastating care failures in Nottingham. Ministers must respond fast

‘Smaller doses of exercise are a miracle cure’: 14 expert tips to protect your joints

Life is much easier if you look after your hips, knees, elbows and shoulders – especially as you get older. Rheumatologists and orthopaedic surgeons explain how to work out, what to eat and how to talk to your doctor

Cold feet: could putting your socks in the fridge help you through the heatwave?

It’s worth a try, according to the Red Cross – seriously

Fit with just five minutes’ exercise a day? I don’t believe it

Everyone these days wants to optimise their workouts, but when a study seems too good to be true, it usually is, says public health expert Devi Sridhar