Doubt by Ansh Singla

can excess release of adrenaline will leads to increasing the heart rate to so much high exten that it wiil leads to death?yes or no

Answers

Answer by Isha Agarwal

Yes, excess release of adrenaline can lead to death.

The autonomic nervous system uses the hormone adrenaline, a neurotransmitter, or chemical messenger, to send signals to various parts of the body to activate the fight-or-flight response. This chemical is toxic in large amounts; it damages the visceral (internal) organs such as the heart, lungs, liver and kidneys. It is believed that almost all sudden deaths are caused by damage to the heart.

Adrenaline from the nervous system lands on receptors of cardiac myocytes (heart-muscle cells), and this causes calcium channels in the membranes of those cells to open. Calcium ions rush into the heart cells and this causes the heart muscle to contract. If it's a massive overwhelming storm of adrenaline, calcium keeps pouring into the cells and the muscle just can't relax.

Too much adrenaline and noradrenaline can be dangerous to the heart, brain, and other organs. An enormous shock, whether positive or negative, can cause your heart to speed up, beat irregularly, or stop. In patients with pre-existing heart disease, the fight-or-flight response can also dislodge arterial plaques, sending blood clots to the heart, causing a heart attack, or to the brain, causing a stroke.