Just say no to sugar Stephanie Mangold: New York state plans to fight obesity by taxing sugary soft drinks. But losing weight requires personal commitment
Hanging out and hooking up Meg Kane: Young people are rejecting antiquated dating rituals in favour of casual dating and hooking up. They may be on to something
NHS in the USA Ashley Sayeau: America needs to stop worrying about 'socialised medicine'. It would be lucky to get the healthcare Britain receives
Americans increasingly obese, hooked on plastic surgery and living by the sea, census shows Latest US survey proves treasure trove of information on American health, habits and lifestyle
A little reality Dan Kennedy: It is important to view dwarves as integral members of society instead of trying to fix people who aren't broken
Research shows HIV’s ancestor millions of years older than believed Findings open a new avenue in the quest to understand the origins of HIV
Hang tough The US is alive with new fitness trends, many of which will be making their way over here. Alexandra Starr tries out three of the best
Healthcare reform: dead on arrival? Merrill Goozner: Obama hasn't even taken office, but US drug companies are already starting their campaign against healthcare reform
Scenes of a sexual nature Abigail Jones: Teenagers may see a lot of nooky on popular TV programmes, but they should still learn about safe sex from their parents
Rebalancing the scales of justice Simon Lazarus and Ian Millhiser: Barack Obama must stop the supreme court from providing immunity to health insurers and other corporate law-breakers