Morning walk is Harmful in metro cities

 In the last some year the air quality in major metro cities is very dangerous.

and the major heavy vehicle movement at night time when all people of cities is sleeping and the road is clear that why vehicle smoke mixed in air whole nigh and when people walk up and go to the park and practice anulom vilom and walking jogging running and intake heavy quantity of polluted air.

That is not good for your health..................................