Irregular sleeping patterns could affect our health. A study in The European Journal of Nutrition suggests sleeping at different times could increase the harmful of bacteria in our stomach. Different sleeping times change our internal body clock. Researchers call this "social jet lag". It leads to eating more sugary snacks, and a poorer diet. The study said social jet lag can encourage bacteria that are bad for our health.

The effects of social jet lag are like those of jet lag. After a long flight across different time zones, people often eat unhealthily. Social jet lag is more problematic, as it is part of our daily routines. It can increase the risk of heart problems and weight gain. A 90-minute difference between sleeping and waking times can upset the body's biological rhythms. Sleep patterns are easy to adjust. Changing them would be good for our health.