Vitamin D supplements don’t help bone health, major study concludes

Biggest ever review of evidence recommends the government ditch its advice to take them throughout winter

Faulty batch of 58,000 Clear & Simple pregnancy tests recalled

UK consumers urged to check digital tests, some of which have returned false positives

Night terrors: what do anxiety dreams mean?

These are anxious times – but how does this affect our sleep, and what can we learn from the exam crises and missed trains that haunt the small hours

Picking up a leaflet at a freshers’ fair won’t turn you into a sex worker

Brighton University should be applauded for promoting health and support services, says the sex worker and activist Molly Smith

Why are food allergies in children on the rise – and is there anything parents can do to protect them?

Around 7% of children have food allergies and, as the recent case of Natasha Ednan-Laperouse showed, in rare, tragic instances, these can be fatal. How worried should parents be?

Children’s lack of sleep is ‘hidden health crisis’, experts say

NHS statistics for England show sleep disorder admissions for under-16s was almost 10,000 last year

Like me, Jacinda Ardern took her baby to work – and was met with ignorance

The New Zealand prime minister is doing her best to juggle work and motherhood, writes MP Jo Swinson

The Guardian view on big data and insurance: knowing too much

Editorial: Insurance depends on the pooling of risk but big data may drain that pool

‘There are pressures to keep working to the end of pregnancy – to keep up’

Young pregnant women are significantly more anxious and overwhelmed than a generation ago. What’s behind this rise, and what are the solutions?

Ten minutes of exercise a day improves memory

Researchers have shown that the brain’s ability to store memories improves after a short burst of exercise