许多人都知道,在一个世纪以前,男性的平均寿命超过了女性,只到本世纪上半叶,女性的平均寿命才呈逐步上升的势头。这主要缘于妇女怀孕和分娩所面临的巨大危险性开始逐日降低。时至1946年,美国女性的人数第一次超过男性。从此,女人日益显示出巨大的生命优势,至六七十年代,女性寿命平均可比男性长7岁以上。10年前,在人类的15项主要死因中,男性的死亡率超过女性,占了14项之多;流行病 Many people know that over a century ago, the average life expectancy of men exceeded that of women, and the average life expectancy of women rose only gradually in the first half of this century. This is mainly due to the declining risk of women becoming pregnant and giving birth day by day. By 1946, the number of American women exceeded men for the first time. Since then, women have shown ever greater advantages in life. By the 1960s and 1970s, the average life expectancy of women was over 7 years longer than that of men. Ten years ago, men had more deaths than women in 15 of the 15 major causes of death, accounting for as many as 14; epidemics