A healthy immune system normally has no trouble dealing with harmful bacteria, viruses and fungi when they invade the body. But how can you strengthen it and effectively reduce the risk of catching a cold, flu or other infectious disease?
Much of the advice sounds familiar, because like the entire body, the immune system works best with a healthy lifestyle: For example, the experts at Harvard Medical School recommend avoiding tobacco. Getting enough sleep, about seven to eight hours every night, is always a good recipe. Eating a balanced diet and avoiding being overweight are just as important as regular exercise. Too much alcohol can also weaken the immune system. And if you don’t want to get infected, you should wash your hands thoroughly and several times a day.