What is happening when you hold your nose and blow down it really hard?!
Question: You get really light-headed, what is happening?
Answers: You get really light-headed, what is happening?
This is called the Valsalva's Maneuver: Per Taber's Medical Dictionary: An attempt to forcibly exhale with the glottis, nose, and mouth closed. This maneuver causes increased intrathoracic pressure, slowing of the pulse, decreased return of blood to the heart, and increased venous pressure. If the eustachian tubes are not obstructed, the pressure on the tympanic membranes also will be increased. When this maneuver may be helpful in converting supraventricular tachycardias to normal sinus rhythm or in clearing the ears that have become blocked during a descent from high altitude.
Hope this answers your question!
Mishi
well actually you could pop ur ears doing this so its not too smart and i think its like cuting off oxygen to ur brain
It just make your ears pop. Nothing terrible is happening. Don't do it for like ever but it won't make you pass out if you do it for a second. The pressure just causes your ears to pop. If you do it when you are on an airplane or driving in the mountains, it can relieve the pressure in you ears from the elevation.
From what I was told by a Doctor once, he said actually when you hold your nose and sneeze, especially a really hard one, you're stressing the blood vessels in your sinuses and it's really NOT a good idea! Also bad for the equilibrium (balance and inner ear) so don't do it kiddos!
P.S. It's one thing to hold your nose and sneeze, not good.
To hold your nose and equalize the pressure in your ears for altitude is different. So don't go giving me a bunch of thumbs down!