The lack and poor quality of sleep is extremely negative for the state and functioning of our immune system. During sleep, a certain part of the immune system is activated, which is responsible for the processes of viruses and bacteria fighting. That is why doctors recommend resting at least seven hours a day. The constant sedentary lifestyle has also changed badly for the functioning of the immune system. Surprisingly, loneliness can also affect our immunity. Prolonged stay in solitude creat...