It is a warning to bear in mind if the Christmas dinner causes family tensions to boil over. For research has shown that nagging from a partner significantly increases the risk of suffering angina. Dealing with worries from children and other family members also adds to the burden, but friends and neighbours pose little risk – unless they are argumentative.

One reason could be that stress levels rise due to the demands from family members, although individual personality could also play a role, the researchers said. Angina is a pain or discomfort in the chest and is usually caused by coronary heart disease. Some might experience focused pain only in their arm, neck, stomach or jaw. While many describe the feeling as severe tightness, others say it more resembles a dull ache. The study, published yesterday in the Journal of Epidemiology and Community Health, involved more than 4,500 Danish men and women who were free from heart disease when the study began in 2000. They were in two groups, one aged 40 at the start and the other 50, and were followed for six years.