1. On average, each hair on your scalp will be replaced ___times during your lifetime.
a. 3
b. 12
c. 25

answer b. Under normal conditions, hair will be replaced approximately 12 times during a lifetime.

2. The average number of hairs lost per day is___.
a. 40 to100
b. 25
c. around 300

answer a. On average, you lose between 40 to 100 hairs every day.

3. On average, hair grows ___per month.
a. 1/2 inch
b. 1 to 2 inches
c. 1/16 inch

answer a.  Average hair growth is generally one-half inch per month.

4. The average growth period for scalp hair is normally ___year(s).
a. 1
b. 2 to 6
c. 7 to 10

answer b. The growth phase of individual scalp hair ranges from 2 to 6 years.

5. The pigment that gives hair its color is called.
a. melanin
b. serotonin
c. trichohyalin

answer a.  Melanin is the pigment that gives hair its color.  The color is determined at conception by the genes you inherit from your parents.  These genes determine the amount of pigment your hair will have.

6. Blondes, brunettes, and redheads all have about the same number of hairs on their scalp.
a. true
b. false

answer False. The average healthy scalp contains approximately 100,000 hairs.  However, blondes tend to have up to 140,000, brunettes approximately 108,000, and redheads have less than average - about 90,000.

7. Your hair grows fastest between the ages of 15 and 30.
a. true
b. false

answer True.  Hair grows at different rates on various parts of the body and at different ages.  It grows fastest between the ages of 15 and 30, and especially in women between the ages of 16 and 24.

8. A man has as many hairs on his hand as a chimpanzee.
a. true
b. false

answer True. The difference is that the hairs on the human hand are shorter and finer. However, both human and chimp hands do contain approximately the same number of hairs.

9. If one of your parents has curly hair and the other straight hair, your hair will also be straight.
a. true
b. false

answer False.  Individuals inherit various genes from their parents which determine what kind of hair they will have.

10. It you live to be 80 years old and never cut your hair, it will grow to an average length of.
a. 2 feet
b. 5 feet
c. 8 feet

answer a. The average length hair will grow in a lifetime is 22-28 inches.  It is rare for hair to grow longer than 3 feet on women.  There are rare cases, however, where hair has been reported to grow as long as 26 feet!

11. The only external areas of your body that are free of hair are the lips, nipples, palms of the hands, and soles of the feet.
a. true
b. false

answer True.  As adults we are extremely hairy animals!  There are only a few areas of the body totally free of hair.  In maturity we have as many hairs as some types of apes.

12. Straight hair is characteristic of the Caucasian (white) race.
a. true
b. false

answer False.  Caucasian hair is an intermediate type, neither bone straight as that of Orientals nor as curly as that of Blacks.  Caucasian hair may appear wavy, curly, or straight, but rarely is it free of some curl.