Complex sentence: This antiplatelet property makes aspirin useful for reducing the incidence of heart attacks; heart attacks are primarily caused by blood clots, and their reduction with the introduction of small amounts of aspirin has been seen to be an effective medical intervention.
Split into simpler sentences: This antiplatelet property makes aspirin useful for reducing the incidence of heart attacks. Heart attacks are primarily caused by blood clots, and their reduction with the introduction of small amounts of aspirin has been seen to be an effective medical intervention.