The 5 things you can do to loosen up ‘creaky knees’ – and when it’s a sign of something more serious

WHETHER it's stiffness when sitting up from a chair or painful twinges when tackling the stairs, knee problems are a common health issue. You might think "creaky knees" only strike when you're older, but knee crepitus - the medical term for clicking, popping and grinding in the joint - is estimated to affect up to...