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The
of social jet lag are like those of jet lag we get after long airplane
. After a long flight across different time
, people often eat unhealthy
foods. However, social jet lag can be more
, as it is part of our daily routines. It can increase the risk of heart problems and weight
. The researchers say a 90-minute difference between sleeping and waking times can have a bad
on the body's biological
. A scientist said sleep patterns were
to adjust. She said this would be good for our
.