Ideally , the rest of your hair should fall below the jawline because it 's more youthful than a short look .
理想状况下,剩余的头发应该垂到下颌以下,因为这比短发会更显年轻。
But ms. meyerhof , who felt discomfort along her jaw during the procedure , said the slight hanging bit under her chin no longer sags , and her face is " tighter around the jawline . " ( Heating collagen to a certain temperature can cause immediate contraction , dr. white explained . )