Those prone to napping had brains that looked up to six years younger than everyone else.
Entries by BBC News - Health
David Cameron says "group think" meant government focused on flu pandemics, rather than other diseases.
Nurse Lucy Letby is accused of being a "calculating and devious" opportunist who killed babies.
Vicky Pattison says she does not regret sharing her egg-freezing journey, despite negative messages.
The scale of long-term use - and concerns about withdrawal symptoms - are revealed by BBC Panorama.
The ex-footballer finishes the challenge in 12 hours and 17 minutes as part of a six-person relay team.
Trisha Allison says her two-year-old collie cross Luna is her "little lifesaver".
The nation's health was declining and the NHS was struggling by 2020, the Covid inquiry hears.
Gay, bisexual and other men who have sex with men in London are advised to have the vaccine.
Dr Nicholas Chapman will be sentenced in July after being found guilty of a sexual offence.