Can eating a bowl of salad or sleeping eight hours a day reduce your risks of catching life threatening illness like swine flu? FYI engages in a dialogue with experts to spill the beans on crucial myths and realities

So, you don't have a viral infection, and yet feel tired and exhausted at the end of the day, every day? If the answer is a resounding yes, that's cause for concern. Since experts believe it's a striking indicator of the fact that you may have a weak immune system.

"There are two kinds of immune systems local and respiratory. Your resistance to viral infections depends on the strength of your respiratory immune system. Viruses reduce the immunity of the respiratory tract leading to bacterial diseases," says Dr Ashok Mahashur, Respiratory Consultant, Hinduja Hospital. Hence, it is vital to keep your immune system in top condition. A variety of different factors including controlling stress, exercising and consuming a healthy diet help boost your immune system. FYI gives you the low-down on how to maintain a bug-resistant system.

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