Britain is quitting smoking. Can our success inspire the rest of the world?

From Monday, small UK shops will be forced to hide cigarettes, but big tobacco is exploiting huge new markets in China, India and Pakistan

Planet of the vapes: inside one nicotine megafactory

Although large numbers of young people are turning to e-cigarettes, the jury is still out on their health benefits. Can two entrepreneurs help put this rapidly growing industry on track?

Why fruit and vegetables have become their own brand

A new campaign gives fruit and vegetables shiny branding and has the likes of Jessica Alba standing up for salad. But will consumers be swayed?

The key to our happiness is connection, not competition

Schools and workplaces encourage our selfish side, but research suggests this attitude is counterproductive to our wellbeing

Will the US ever pass a new chemical safety law?

Senators have introduced dueling bills to revamp a 39-year-old law regulating chemicals in the US, pitting environmentalists against businesses

The health halo: how good PR is misleading shoppers

US research shows that socially responsible food companies are assumed to have healthier products

Is therapy worth the cost? Guardian readers weigh in

In response to our series on the personal financial expenses of mental health, readers shared their own stories and thoughts

The rubber in your rubbers: the condom company making sexy time sustainable

You should be able to buy a condom that doesn’t require chopping down native jungles, or paying its workers less than the living wage to produce it

Phthalates are everywhere, and the health risks are worrying. How bad are they really?

Phthalates are everywhere, and a tidal wave of new research has documented their wide-ranging negative health impacts, but what are the real risks?

UK retailers enjoy sales lift from New Year resolutions

Sales of fresh fruit and vegetables as well as exercise equipment help takings in January but shops continue discounting to lure consumers, figures suggest