Night owls make less money than those who wake up early in the morning.
Night owls earn less money than early risers
New research has found a link between circadian rhythm - the body's internal clock - and income levels to conclude that those who are more active in the evening earn four per cent less on average compared to early risers.
Experts from the University of Oulu in Finland analysed data on 12,000 people and collected information on education, work experience and lifestyle choices.
They found that night owls have more "bad" characteristics such as drinking more alcohol, smoking, and an unhealthy diet.
Dr. Andrew Conlin, who worked on the study, said: "Evening chronotypes tend to accumulate less human, social and health capital.
"On average, accruing less work experience and making poorer choices regarding healthy lifestyle are associated with lower levels of income in middle age."