THE world's food is far too salty and too many countries are still ignoring the World Health Organisation's (WHO) guidelines on what should be a healthy level of salt in our daily diet , according to a report.

Global salt intake is still too high, according to a leading academic, and many countries ignore the WHO's advice on a maximum intake of 5g/day by issuing guidance far in excess.

People are much less likely to be exposed to second-hand smoke these days, a new study shows.

Dr. Saverio Stranges of the University at Buffalo in New York and colleagues had set out to investigate the association between cumulative lifetime exposure to other people's cigarette smoke and heart attack risk. They found no such link, but they did find a "dramatic decline" in reported second-hand smoke exposure over time.