The life span of Tibetans has increased to 65 years from 36 in 1959,the year of the democratic reform started. The infant mortality rate shrank to 3.7 percent in 1998 from 43 percent 40 years previously in Tibet.

• 西藏人均寿命由1959年民主改革时的36岁，增加到目前的65岁，婴儿死亡率由四十年前的43%25下降到1998年的3.；7%25。