With unexplained hair loss, there’s not one trigger for every person and there’s not one treatment for every person.
对于无法解释的头发缺失，没有一种起因可以归因于每个人，也没有那么一种治疗方法适合每个人。
2
But sudden, unexplained weight loss can be even more worrisome.
不过原因不明的体重突降也许更值得担。
3
Kayla Martell, Miss Delaware, has been bald for half of her 22 years - she has alopecia areata, a rare condition that results in unexplained hair loss.