Question
Short answer
Mouth dries up and heartbeat increases during public speaking. Explain.
Mouth dries up and heartbeat increases during public speaking. Explain.
✓
Answer
Mouth dries up and heartbeat increases during public speaking. It is due to adrenaline hormone which prepares the body to meet any emergency situation. It makes the heartbeat faster. At the same time, it stimulates constriction of arterioles of the digestive system reducing the blood supply of the digestive system which makes the mouth dry.
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