The science of skin: everything you need to know about your body’s biggest organ – and how to protect it

It is the size of a bedsheet, an outward display of our mood, age and identity and replaces itself completely every month – and that’s just scratching the surface

Cold water immersion therapy: do the benefits outweigh the risks?

The health and wellbeing effects of plunging into icy water are well documented – but how dangerous is it?

Run at 40, dance at 80: the best ways to exercise in every decade of your life

Tennis, running, weights, yoga … all exercise is good, but certain sports have more of an impact at a particular age. Here’s what you should be doing – and when

Retinoids work, wipes don’t: 21 things I’ve learned about skin care

What to spend your money on and what not to: Sali Hughes’s lessons from 33 years in the beauty industry

More than 1 million children in UK sleep on floor or share bed, study finds

Barnardo’s says the rise in ‘bed poverty’ reflects growing levels of destitution following soaring food or gas bills

Smoking in pregnancy increases risk of premature birth threefold, study finds

Risk of smoking double the previous estimate, but research finds no link between above average caffeine intake and pre-term babies

The secret world of breast cancer: 17 surprising things I wish I’d known

I thought I knew all about the disease that took my mother when I was nine. But on being diagnosed myself, my eyes were opened to the myths and realities

My first time in a float tank: ‘The only part of me I was sure still existed was my head’

In her fortnightly review of fitness and wellbeing activities, comedian Jennifer Wong experiences sensory deprivation in a salty, skin-temperature bath

The Norwegian secret: how friluftsliv boosts health and happiness

The idea of communing with nature is instilled from birth in Norway. I hiked through a rain-drenched forest to try it myself

I have taken up running – and lost my grip on reality

In my mind I am now an elite athlete, obsessed with every small sign of progress. How has this happened to me, writes Anita Chaudhuri