‘An unsolved mystery of science’: why do I dream about my teeth falling out?

Experts say such dreams of dental distress may relate to the processing of various emotions and experiences

Fly around or make out with your crush: how to start lucid dreaming

We asked experts to share tips on how to take control of dreams once you realize you’re in it

Night owls versus early birds: who is superior according to science?

And is it actually possible for your body clock to change? Am I really turning into an early bird or have I just been forced into a child-dictated schedule?

What is the best pillow for your sleeping style?

The wrong pillow can disrupt sleep, so finding the right one can guard against decline in mental and physical health

Why do I keep waking up at 2am – and how do I get back to sleep?

Experts say it’s common to wake up at night, but maintenance insomnia can cause trouble sleeping again

I got a robot massage and lived to tell the tale

Can one really relax while being prodded by large robotic arms?

Why do I feel so much worse after a nap – and how can I avoid it?

Waking up from a nap feeling groggy, tired or ill? Experts say it’s common. Here’s what could be going wrong

Was everything brighter 40 years ago? How color perception changes as we age

Do things look duller? As we age, the way we see the world can change – literally

How do I stay healthy in my 50s, 60s and 70s?

By focusing on certain areas – like nutrition, exercise and positive connections – you can age well in every decade

I hate the way sneakers look on me – is there another comfortable shoe I can wear?

I asked doctors and fashion experts, and they all said I should wear sneakers. Now I’m having a style crisis