The immune system is a network of special cells, tissues, proteins, and organs that work together to protect the body from potentially damaging foreign invaders and disease.
When our immune system functions properly it detects potential health hazards, such as bacteria, parasites, and viruses, and it triggers an immune response to destroy them. Our immune system can broadly be divided into two parts: innate and adaptive.
eating a diet rich in fruits and vegetables: Citrus fruits and vegetables such as peppers, brocolli, onions, garlic and ginger are loaded with Vitamin C.
exercising regularly: According to doctors exercise can boost your immune system by providing a boost to the cells in your body that are assigned to attack bacteria. These cells appear to work more slowly in people that don't exercise than in those that do. As a result, if you exercise, your immune system is better equipped to handle bacteria that could cause you to become sick. Though this boost only lasts for a few hours after you exercise, it's often enough to help keep you healthier than you would be if you didn't exercise.
getting enough sleep: Yes, lack of sleep can affect your immune system. During sleep, your immune system releases proteins called cytokines, some of which help promote sleep. Certain cytokines need to increase when you have an infection or inflammation, or when you're under stress. Thus, Sleep deprivation may decrease production of these protective cytokines.