Most of us always think that stress comes from any deadline, arguments or any life problem. But there is something which you don't realise in your background which is constantly working. Traffic outside your house, in every few minutes notification is buzzing in your phone. When your TV is switched on even if no one is watching. These sounds feel harmless but you never know that they will give you a side effect. Even when you’re not consciously annoyed, your nervous system stays alert. Over time, that alertness turns into stress.
