सुग्लायनाय सोलोंनायखौ हेफाजाब - होनो इसे गोबाव सिगां बायफिदबेक बुंनाय मोनसे थदगोनां मेसिन दिहुनजादोंमोन ।
A sensitive machine called biofeedback has been invented not long back to help people to learn relaxation .