‘To them, ageing is a technical problem that can, and will, be fixed’: how the rich and powerful plan to live for ever

When Xi Jinping and Vladimir Putin were caught on mic talking about living for ever, it seemed straight out of a sci-fi fantasy. But for some death is no longer considered an inevitability …

‘The closest I came to making life was the closest I came to death’: Florence Welch on sexism, screaming and the lost pregnancy that nearly killed her

The Florence + the Machine singer talks about life after devastating loss, performing with Taylor Swift and the double standards for women in music

Why everyone is lifting weights – and how to get started (whatever your size)

Are reps or weights more important? Is it good if it hurts? How should I structure my workouts? Everything you need to know about resistance training, from the experts

Daylight saving haters rejoice: scientists confirm it’s bad for health

US Congress is debating permanent daylight saving – but new research shows keeping clocks on standard time is least stressful on the body

My blood type made me a donor superhero – until my weakness for crisps let me down

‘It’s such a shame,’ said the nurse as she turned me away from the donation centre, and I realised my assumptions about being O-negative were all wrong

I spent months testing insomnia cures – then grieving for a pet made sleep impossible

What sleep aids can’t fix; eco-friendly period products; and LED face masks, tested

The one change that worked: I used to sip Red Bull to get me out of bed – until I tried the 3-2-1 method

It’s always been difficult for me to throw off the covers and get going. Now, a self-imposed short, sharp shock has brought order and urgency into my life

Is it true that … doing puzzles prevents dementia?

Completing a fiendish jigsaw certainly engages many areas of the brain, but genetics and other lifestyle factors also play their part

‘We’re exhausted – but not from doing too much’: can this woman help us survive the age of distraction?

With three jobs, three children and a labradoodle, the behavioural scientist Zelana Montminy knows a lot about being pulled in all directions. What can her new book about finding focus teach the rest of us?

Try again. Fail again. Fail better: eight things I’ve learned in my year of ‘lifting heavy’

I didn’t expect to enjoy heaving chunks of metal. But lifting has paid off for me in surprising ways – and shown I can change my life dramatically, writes Guardian columnist Emma Beddington