What is the main idea of this article?

Abnormal softening of a gland is known as

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

What causes darkening of the skin as melanin production increases