Complex sentence: In terms of crowd reaction, heat is usually either cheers for a heroic character (the "babyface") or boos for a villain (the "heel") and the amount of heat a wrestler generates is often an accurate gauge of his popularity.
Split into simpler sentences: In terms of crowd reaction, heat is usually either cheers for a heroic character (the "babyface") or boos for a villain (the "heel"). The amount of heat a wrestler generates is often an accurate gauge of his popularity.