New Delhi, Nov. 23 -- Winter is that time of the year when everyone seems to catch a cold without warning. One moment you are fine, and the next you are sneezing nonstop. But here is something most people do not realise: your immune system is not weak, it is simply under-stimulated. Just like your muscles need regular movement to stay strong, your immunity also needs everyday activity to stay alert. And no, this does not require hardcore workouts or hours in the gym. Even simple, gentle exercises can boost blood circulation, improve lung capacity, reduce inflammation, and help your body fight infections more efficiently.

Exercises to boost immunity

Here are 9 exercises that can help you boost immunity during winter:

1. Brisk walking

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