Laughing out loud improves circulation as much as exercise, according to researchers at the Centre for Preventative Cardiology at Maryland University, US.
Challenging your brain by reading upside down or writing with your opposite hand extends the lifespan of cells and increases life expectancy, say researchers in The Sun newspaper.
Having a faith is linked to lower mortality rates, according to the US National Insititute for Healthcare Reserach, so visit your church, mosque or synagogue.
Snoring can be a sign of obstructive sleep apnoea, which means you are five times more likely to have a heart attack, according to the European Respiratory Journal.