Sleep was shown to improve the ability of some immune cells to attach to their targets and may be one reason why sleep is important for immunity.

Sleep was shown to improve the ability of some immune cells to attach to their targets and may be one reason why sleep is important for immune function.

T cells were taken from healthy volunteers while they slept or stayed awake all night. T cells taken from sleeping volunteers showed significantly higher levels of integrin activation and were able to bind to targets compared to T cells taken from wakeful subjects.