Happiness boils down to neuroscience and the size of a particular region in the brain.

Neighbourhood Lifestyle Desk/Avi Arya: A team of university professors in Japan examined the links between brain structure and happiness and found that happier people had a larger volume of grey matter in the precuneus, an area in the brain sandwiched between the two cerebral hemispheres that studies have linked to memory retrieval.

They analysed structural MRI scans and compared these results with participants’ responses to the Japanese version of the Subjective Happiness Scale (SHS), which measures happiness levels via a four-item questionnaire and asked questions intended to rate their personal levels of happiness on a seven-point scale and has been used globally in psychiatry since its advent in 1999.