More research will be needed, but it could be that the sum total of how much movement we get throughout the day means more than whether we break a sweat for a shorter period.

FORBES: Hard And Fast Or Slow And Steady? Choice Of Exercise Matters To Health, Study Says

Alcohol reduces how much time we spend in rapid eye movement (REM) sleep - the stage of sleep where dreams generally occur.

BBC: Alcohol-fuelled sleep 'less satisfying'

Dr Houston's research is revealing just how much dance has to offer above simple exercise and movement.

BBC: En pointe to tackle Parkinson's disease

Now, she is driving a movement designed to give candidates a shot at winning no matter how much money they have, through the public financing of campaigns.

WSJ: NY seeks to use public dollars to fund campaigns

The much-praised hospice movement may now be asked to help patients decide not how to die but when to die.

ECONOMIST: Doctor-assisted suicide