Getty. Much like the rest of your body, your hair goes through changes as you get older. The hair cycle -- rest, shed and grow -- slow downs, and can lead to hair loss, which can be very traumatizing. Your hair changes every seven years, explains women's hair restoration expert Lucinda Ellery. There are 150,000-200,000 hairs on our heads; we actually shed 100 a day, 36,000 in a year on average.
Definitions of yardstick. 1. measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths.
uptick/downtick ratio. A relative measure of the degree to which block transactions take place at increasing prices as opposed to declining prices. Transactions that occur on upticks are considered to be initiated by buyers, and sellers are considered to initiate transactions on downticks.