On World Osteoporosis Day, we ask experts about how to deal with the condition, including medication that can be taken and vitamin deficiencies to be aware of. Five lifestyle changes to consider include more weight-bearing exercise, sleeping well and taking care of your gut microbiome.

A massive analysis of 84 previous studies suggests there is no benefit in taking beta carotene, or vitamins D and E, for preventing heart disease and cancer. In most healthy adults, key vitamins and minerals can be obtained from a well-balanced diet and daily early morning sunlight, a doctor says.

Anthea Rowan asks whether understanding her mother’s depression can help protect her against developing dementia. A strong link is seen between depression and dementia; socialising, brisk walks, watching your weight, drinking less alcohol and not smoking may lower the risk.