50 ways to live longer

Stay married Research has shown that a happy marriage lengthens life expectancy, while divorce shortens it.

Have a good laugh It can boost your circulation as effectively as aerobic exercise and it also relaxes blood vessels, reduces levels of stress hormones and triggers the release of feel-good endorphins.

Maintain your social life Experts say a strong social network could be just as important for health as taking exercise.

Volunteer A US study found that people who volunteered saw an improvement in their own mental and physical health.

Develop your spiritual side According to one study, people who go to church regularly are 35% more likely to live longer than non-believers.