The 5G mobile network has been switched on in some UK cities and has led to questions about whether the new technology poses health risks. So what are the concerns, and is there any evidence to back them up?

Nearly everyone can lower their risk of dementia, even if it runs in the family, by living a healthy lifestyle, research suggests. The study of nearly 200,000 people showed the risk fell by up to a third.

Ministers are reportedly planning to issue guidance on how much sleep people should be getting every night. The recommendations are expected as part of a series of proposals aimed at improving public health in the UK.

Air pollution ages our lungs up to two years and increase our risk of a deadly lung disease, research suggests.

Light emitted by phones or tablets at night causes sugar cravings and could lead to weight gain, a study on rats has shown. Just one hour of exposure to blue light – the artificial light given off by technology –was found to affect the rat's...

A revolutionary tool that can 'listen to bacteria communicate' could curb antibiotic resistance, scientists say. 

Oranges, grapes and carrots may contain cancer-fighting compounds that closely resemble those used in licensed drugs, research suggests.

Waiting lists for routine surgery have risen by up to 50% in England because senior doctors say they cannot afford to work extra shifts.

Blasting the legs with high energy sound waves could be a radical new way to treat unsightly varicose veins – without the need for surgery. The experimental treatment, which takes just minutes, means patients are left scar-free.

A strain of the common cold virus can infect and kill bladder cancer cells, a small study suggests.