Tipping point: revealing the cities where exercise does more harm than good

In at least 15 cities, air pollution has now become so bad that the danger to health of just 30 minutes of cycling each way outweighs the benefits of exercise altogether, according to new research

Green buildings make you work smarter and sleep sounder, study reveals

Improved light, ventilation and heat control can boost workers’ productivity by thousands of dollars a year and reduce instances of sick building syndrome

Getting a good night’s sleep in Grenada

The Guardian’s insomniac writer discovers Grenada’s ‘Sleep School’ – and learns the A to ZZZ of getting the perfect night’s sleep. 

http://www.theguardian.com/travel/2012/jan/13/healthy-holidays-sleep-clinic-grenada-hotel