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Palpitations
The feeling that one's heart is beating too hard or too fast, skipping a beat, or fluttering.
Cholesterol
A lipid molecule synthesized in the liver or ingested from diet, essential for all animal life, but high levels are linked to cardiovascular diseases.
Waxy Substance
A general term for materials that are solid at room temperature and have a slippery or glossy texture; in biological contexts, it might refer to substances like cholesterol.
Cells
The smallest structural and functional units of life, which can replicate independently and are made up of cytoplasm enclosed within a membrane.
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