Smoothies and fruit juices are a new risk to health, US scientists warn
Scientists say potential damage from naturally occurring fructose in apparently healthy drinks is being overlooked
The 20 online talks that could change your life
Tom Meltzer: From TED talks to online seminars, video channels crammed with inspirational and thought-provoking lectures are educating us on everything from town planning and depression to body language, animal morality and dangers of sugar in just a few minutes. Here is our pick of the best
Dengue fever epidemic sparks public health emergency in Central America
Health organisation warns that figures 'may explode' due to favourable climatic conditions for virus-carrying mosquito
Robert Skidelsky: ‘Why don’t more people aspire to living a good life?’
The economic historian talks to Tim Adams about his utopian ideal, our pursuit of money and the problem with happiness
Ending female genital mutilation, one household at a time
For major social change, you have to educate and motivate communities to act differently. One Senegalese chief achieved just that. The NGO he worked with shares the lessons learned
Jamaica the homophobia capital of the world? Not the Jamaica I know
St Rachel Ustanny: Sexual and reproductive rights are key to the development of a country once voted the most homophobic place on Earth
Turning back the clock: how to stop (or slow) signs of ageing – live chat
Emma G Keller: Lauren Kessler spent a year investigating the ageing process and what – if anything – we can do to prevent it. She'll take your questions live today at 1pm ET
Heavy coffee consumption increases death rates in under-55s, study suggests
Scientists claim those in age group who drink average of more than four cups of coffee a day are at 56% greater risk of death from all causes
DrinkSavvy: how your straw could help you stay safe
New drinkware changes color and pattern in the presence of common 'date-rape' drugs GHB, ketamine, or Rohypnol
Reel to real: Zambian TV show inspires sex education scheme for deaf people
Youth clubs based on Love Games series bring sex education to people with hearing disabilities to stem high levels of HIV