Twas the Nightshift Before Christmas by Adam Kay review – more matchless stories from A&E

From the author of This Is Going to Hurt, funny, disgusting and moving tales with a festive twist – and a show of support for overworked NHS staff

Why do people think 41 is too old to exercise? It’s a perfect time to start

The truth is that whatever your age, exercise can be beneficial - and just think about the post-workout high

One step at a time: how to improve mental health through fitness

From regular walks to workouts or team sports, there are all kinds of activities that can help anxiety and depression. Here’s how to get started

‘Pilates-changed-my-life’ stories are annoying… but it did

Over three years the exercise regime took Rachel Cooke from terrible back pain to new levels of fitness. But it was a lot harder than she expected

I’m 41. My boyfriend doesn’t want kids, so I’ll have them alone – without leaving him

I am in the relationship I’ve always wanted. And my new British citizenship makes single parenting easier

UK supermarkets ‘not transparent enough’ about pesticide use

Information not routinely displayed on labels of food and gardening items, report finds

Can veganism help with erectile function?

A new TV documentary suggests giving up meat might help men address some common sexual issues. Do the claims stand up?

America has an infant mortality crisis. Meet the black doulas trying to change that

In the US, black babies die at twice the rate of white babies. In Cleveland, the mortality rate is nearly three times as high. Can birth advocates make a difference in one of America’s most segregated cities?

The Guardian view on prisons and mothers: an injustice

Editorial: The shameful treatment of pregnant inmates and of the children of jailed women must be addressed. No babies should be born behind bars

Do you take hours to make a simple decision? You may have Fobo

Fear of missing out has a more anxious sibling, and could stop you going to social events – or buying your Christmas turkey. Here’s what is behind fear of better options