Being lazy during the day makes you more moody, claim expert scientists

Those who laze during the day are more likely to suffer seasonal mood disorders, a study claims.

Research involving volunteers wearing activity monitors found a link between sunlight, activity and mood.

Study co-author Prof Sandra Rosenthal of Vanderbilt University, Tennessee, said: "It is possible sedentary behaviour results in reduced time outdoors and does not allow people to capitalise on the benefits of sunlight."

The US study of 23 volunteers with depression and 32 without was published in Plos Mental Health.