Katherine Ryan has had a facelift at 42. Why do I feel betrayed?

I’m a fan of the comedian and her decision initially made me feel like a haggard loser. But famous women are not obliged to act according to other people’s wishes, writes Polly Hudson

Is it true that … central heating is bad for your skin?

Dry air indoors can cause an inflammatory reaction, yet so can cold, windy outdoor conditions – but turning down the heating and using a moisturising cream can help

‘It’s the most urgent public health issue’: Dr Rangan Chatterjee on screen time, mental health – and banning social media until 18

The hit podcaster, author and former GP says a failure to regulate big tech is ‘failing a generation of children’. He explains why he quit the NHS and why he wants a ban on screen-based homework

Readers reply: can you acquire courage?

The long-running series in which readers answer other readers’ questions ponders how to overcome fear and do what is needed

Facing meltdown? Over 75% of people suffer from burnout – here’s what you need to know

Does it only affect weak people? Is work always the cause? Burnout myths, busted by the experts

‘You think: Do I really need anyone?’ – the hidden burden of being a hyper-independent person

Self-reliance is often encouraged over asking others for help in the modern world. But doing everything yourself can be a sign that you are scared of intimacy

Wear shades in winter and follow the 20-20-20 rule: experts on 13 ways to look after your eyes

Everyone should get their eyes tested every two years, but there are other ways to optimise your vision, say ophthalmologists – and yes, eating carrots may help

I’m finding it difficult to live up to my morals. How do I know when it’s OK to compromise?

It can feel overwhelming, writes advice columnist Eleanor Gordon-Smith. But ask yourself what sacrifices make the biggest proportionate impact.

‘I lived the life I’ve always dreamed of’: the man who cycled around the world for four years

Andreas Graf lived without screens and no idea of the date or time. The conditions were often brutal – but he found kindness and friendship as he rode

The best walking pads to turn your workday into a workout, tested

Sedentary lifestyles are bad for us, but which under-desk treadmills and walking pads are worth the cost? Our expert stepped up to find out