Tara Moore/Getty Images; Matt Dartford
WHAT MAKES PEOPLE HAPPY?
You probably know the type: those Pollyannas who seem to have a relentlessly sunny disposition. Are they simply born happy? Is it the product of their environment? Or does it come from their life decisions?
If you are familiar with genetics research, you will have guessed that it is a combination of all three. A 2018 study of 1516 Norwegian twins suggests that around 30 per cent of the variance in people’s life satisfaction is inherited. Much of this seems to be related to personality traits, such as neuroticism, which can leave people more vulnerable…