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.
1. countable noun. 1  A yard is a unit of length equal to thirty-six inches or approximately 91.4 centimetres. 2  A yard is a flat area of concrete or stone that is next to a building and often has a wall around it. 3  You can refer to a large open area where a particular type of work is done as a yard.