Today polluted environment, adulterated food, poor diet, stressful and hectic lifestyles impede our ability to stay healthy. We take many medicines but can we be sure that their combined effect does more good than harm to us? And where do we turn when we are unable to diagnose the exact problem or if the medicines are ineffective in treating us? Since many of these external factors are beyond our direct control, our only long-term hope is around stepping up our own physical defense and immunity.