今年我已54周岁了,能在这个年纪拥有一头长达腰际的秀发,少有白发,常使科里年轻的医生护士们羡慕不已。头发的多少、粗细、黑白与遗传有很大的关系。我父亲今年85周岁,挺健康,在他很年轻时就有白发了,并把这种“少白头”遗传给我的双胞胎弟弟,我遗传了母亲头发的特质,软、细、黑中略带棕色,今年她79岁了,头发仅为灰白。我一向喜欢留长发,因为留短发每隔1～2个月就要到 I am 54 years old this year. At this age, I have a hair of waist length with few white hairs, which often envy young Cornell nurses. How much hair, thickness, black and white and genetic have a great relationship. My father is 85 years old this year, very healthy. When he was young, he had gray hair and gave this twin brother to me. I passed on the characteristics of my mother’s hair, soft, thin and black The slightly brown, 79 years old this year, her hair is only gray. I always like to stay long hair, because short hair every 1 to 2 months to come