A new study published in the American Journal of Physiology suggests that trying to catch up on some sleep on the weekend may not be beneficial as you may already be feeling the negative effects of lack of sleep.
Around 30 healthy adult volunteers took part in the study in which they were placed on a 13-day schedule during the first four days of which they were allowed to sleep for eight hours a day. For the next six days, the volunteers were woken up after just six hours while on the final two days, they were allowed to sleep for 10 hours in a day in order to recover from their lack of sleep on the preceding days.
The researchers monitored the volunteers' health and performance using a variety of different tests on three different days during the period and found that after five days of deprived sleep, the volunteers were sleepier on both objective and subjective tests compared to baseline levels. The researchers also found that while the sleepiness went away after the extra sleep recovery period, their ability to pay attention had also deteriorated during the period and did not improve after the recovery.