Show MUCH VIRTUE IN GOOD YAWN N beneficial exercise though it mam be well for one to select the tha time and place yawning may be rude especially 10 1 company but it Is a good thing tv you yell to do for one thing it ventilates the lungs when you take un an ordary breath the lungs are not comP complete letell filled nor are they thoroughly amok empal by an ordinary respiration there is 11 a certain quantity of air left in the lungs always which physiologists call cal residual air this air in time becomes foul sd M affects the blood and through the t blood the nervous centers certai cert 11 nerves get tickled as it it were a the result is a yawn stretching 00 lungs to their fullest extent filling them with clean fresh air and driving the foul air out one reason why it is good to y yawn awn for another ya yawning n I 1 n g 0 open pa as and stretches and ventilates all the various passages leading t to 0 the lingg you will p perhaps t chaps be surprised to know tila that t y yawning awning is even evell be benancia ben encia to your hearing the cracking aoun sound I 1 which yon aj of orten ten hear when giving aji e M atra big yawn is due to tho the stretching opening of the eustac eustachian cus hiar tube it these tubes communicate between abo tn ear and ana the back of the throat 11 they are congested which liappa when you have a bad cold in the ne people complain of deafness it if you feel Inell inclined ned to yawn aben tny do so it II Is natures way of cleam cleab s out your lungs and air passages passage |