Final answer:
When you place your hand over your heart, you feel your heartbeat more strongly on the left side because the heart is slightly tilted to the left. The left ventricle, responsible for pumping oxygen-rich blood, creates a stronger pulsation that can be felt more prominently on the left side of the chest.
Step-by-step explanation:
When you place your hand over your heart, you feel your heartbeat more strongly on the left side because the heart is slightly tilted to the left. The left side of the heart contains the left ventricle, which is responsible for pumping oxygen-rich blood to the rest of the body. As the left ventricle contracts, it creates a stronger pulsation that can be felt more prominently on the left side of the chest.
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