The lack of sleep can seriously affect our health, including a weakened immune system. In a new study published in the journal Sleep, researchers have found that sleep deprivation can reduce the effectiveness of vaccines by decreasing the production of antibodies. Contents of What can lack of sleep cause? The Importance of Sleep for the Immune System Sleep is essential for the immune system to function properly. During sleep, the body produces cytokines, a protein that helps fight infections and inflammation. Lack of sleep can lead to a decrease in the production of cytokines, which can result in a weakened immune response. In addition to cytokine production, sleep also plays…