Is it true that our heartbeat stops whenver we sneeze?!
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no, your heart doesn't stop, though, it is impossible to keep your eyes open when you sneeze.
Other Answers:
very true.
Sneezing usually occurs when the nerve endings of the mucous membrane of the nose are irritated, due to a swelling of the membrane, for example when we have a cold, or when some foreign body, such as a gnat, invades our nose, or when allergy and pollen season strike.
Surprisingly enough, sneezing can be brought on (or out!) when the optic nerves in our eyes are exposed to bright light!
For whatever reason, the membrane is irritated, sneezing is a reflex act, completely beyond our control, by which the nose trumpets out air in an attempt to eject (and project!) the irritating bodies. Sometimes, however, this is accomplished only through multiple sneezes.
but when the nose is doing its job the heart stops for fraction of a second in the very beginning of the sneeze in order to stop blood flow in the air Saks in the lung basically protecting the in coming of blood in the sags.
No. The heart's rhythm is controlled by a natural pacemaker – the sinoatrial node, a group of cells located in the right atrium of the heart. These cells create an electrical impulse by pumping charged particles out of the cell and then allowing them to flow back in. Conducting cells transmit the electrical impulse to all parts of the heart to initiate muscle contraction. Sneezing does not stop this electrical activity.
However, the nervous system and circulating hormones, such as adrenaline, alter the rate of the electrical activity in the sinoatrial node to increase or decrease heart rate. Just as exercise leads to an increased heart rate, sneezing works many muscles; therefore it is possible for a "sneeze attack" to increase heart rate.
NO, this is a myth!
No
very true
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