Why our food is making us fat

We are, on average, 3st heavier than we were in the 60s. And not because we're eating more or exercising less – we just unwittingly became sugar addicts

It is time for MPs to pay mental health more attention – and money

The Commons has a chance next week to start dealing effectively with a debilitating and costly blight on the life of many in the UK

Britain has world’s third highest proportion of sexually active teens

UK also ranks badly among high-income nations for harmful teenage drinking, according to study in Lancet medical journal

We must demonise junk food for the sake of our children

Aseem Malhotra: We must educate children properly about nutrition if we are to alter the statistics on obesity

The insider’s guide to cancer prevention

These experts spend their lives fighting cancer. They have heard every tip, sensible or not, for how to avoid it. They tell Oliver Laughland how their lifestyles have changed as a result

PIP breast implant warnings were inadequate, says MPs’ report

Committee recommends women should be allowed to pay NHS for replacement at same time as free removal of faulty implants

Healthcare law: outside the supreme court, passions flare over legal battle

This week's hearings may be a dry contest of legal precedent, but there is no shortage of furiously divided opinion outside court

Giant food firms fail to back battle against obesity

A health campaign to cut levels of salt, fat and sugar is being undermined by lack of support from the food and drink industry

I oppose the bill, but don’t idealise the NHS. There’s room to improve

Deborah Orr: My family is from one of the parts of the country that is, statistically, less well-served by the health service. I'm not bitter, but the NHS did not save my father's life

PIP breast implant scandal may involve 7,000 more British women

Tests show that substandard silicone was used to fill the implants for much longer than had been thought