Get out of doldrums

Low spirits can upset the heart's rhythm and increase the risk of coronary diseases

Infectious and wholesome

Socially cold

Effective alternative

Blinded by smoke

Beer cures

Race against the rat

Scientists will try to outrun rodents in predicting carcinogenic effects of chemicals

Golden moments

Fewer watts: brighter future

Energy-efficient, green lamps are here to reduce consumption of electricity round the globe

Future fuel

Coal is making a comeback, in gaseous and liquid forms, as the fossil fuel of choice

Tiny trouble-maker

All aboard for the Red Planet

Heart surgery made easy

Nasal route

A new technique has been developed to treat brain tumour

Diabetes-free potatoes

In tiny specks

...is written the history of the Solar system's formation and life on the Earth

Innocent victims

Breastfeeding by Hiv-infected women transfers the virus to the infants, says a study

Hype about salt

To eat or not to eat is not the question, says a critic of 'low salt' theory

Garbage power

Winnowing made easy

A simple technology is now available for separating grains from chaffs

Mushrooming study

Flight into the storms

Nose best

The humble nose can revolutionise the way brain diseases are currently treated

Early warnings

A new test will determine if an adolescent faces the risk of substance abuse in the future

Froggy innovations