There are many simple ways to strengthen a weak immune system. These ways may involve a change in your lifestyle. One of the first things you must do is start exercising daily for a minimum of 30 minutes. A daily routine of exercise improves your circulation, and skin, develops your lungs, heart and the entire musculature and bone structure of your body. If you are unable to do anything too strenuous, include a Yoga session in your exercise regimen, as this will also help you to grow stronger both mentally and physically, and is also not very tiring. Try not to skip a single day of exercise. Omit all processed foods, even minimally, from your diet. Processed foods contain preservatives and additives that have all manner of indeterminate reactions in your body and can lead to weakening you over a period of time.
Indian gooseberry (indian gooseberry) is the richest source of Vitamin C, an essential ingredient to boost your immune system. Take a teaspoon of the powder of this everyday if you can with water. You can also have this in pill form. It is an invaluable aid in strengthening your immunity. Alternatively, you can also have a pill of Echinacea everyday. This herb is also known for its powers in terms of boosting your immunity. Try to supplement your diet with other natural sources of Vitamin C such as kiwis, guavas, papayas, mango, black currants, cherries, grapefruit, custard apples, oranges, and water melons.
answered by G R