The immune system is a vast and organized network of cells, tissues, and organs that defend the body from germs, viruses, and microorganisms. It plays a vital role in keeping your body healthy by preventing infection. Such a vast system needs an elaborate and well-connected mechanism of working, and that is exactly how the immune system in your body works. It first detects and then responds to the presence of an enemy element in the body, and works through a set of systematic steps to combat it. Sometimes, the immune system tends to malfunction due to various reasons like stress, an inactive lifestyle, and poor eating habits. And, when it does, it is not a good sign. The good news is that you can help to restore it to its previous glory by practicing restorative yoga for just 15 minutes daily.