While average smoking rates have plummeted, some groups have been left behind.
A simple guide on how to get a good night's sleep in the heat.
Simple tips to help you get a good night's sleep during hot weather.
One country will "sacrifice many sheep in Boris' honour". Even if its president might not be thrilled.
Political documentary maker Michael Cockerell profiles Britain's new prime minister, Boris Johnson.
There's a growing consensus that the next year-and-a-half are key in the battle against rising temperatures.
Once Marwan and Elie fought for rival militias in Lebanon's civil war - now they've become close friends.
Girls in Ethiopia are being given solar lamps to help stop child marriage and keep them in school.
The appalling treatment of Congo's rubber workers led to the world's first photographic human rights campaign.
