Aaj kal machines aur technology ka zamana hai. In sab me humlog etna kho gaye hai. Physical activity kya hota hai hum bhool chuke hai. Agar aap physcally fit ho toa aapko kbhi koi bhi bimari nhi ho sakti. Aur swimming ek bahut hi achchi exercise hai. Jo ke body ko fit rakhne me bht madad karte hai.
