A study of almost 20 million people has found that having diabetes increases the risk of someone getting certain cancers.
A survey of 1,000 British parents has found that children eat up to five times as much sugar during the summer holidays than they do at other times of the year.
An Australian study has found that people who regularly eat oranges have a significantly reduced risk of developing age-related macular degeneration, a condition that can lead to sight loss.
A study has found that there is a 14% increase in the risk of developing a heart rhythm disorder for every 10 cigarettes a person smokes a day.
Mothers who are a healthy weight, don't smoke, do regular exercise and drink alcohol in moderation are less likely to have children who are obese, a study has found.