1. On average,
each hair on your scalp will be replaced ___times during your lifetime.
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
c. around 300
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
a. Average hair growth is generally one-half inch per month.
4. The average
growth period for scalp hair is normally ___year(s).
b. 2 to 6
c. 7 to 10
b. The growth phase of individual scalp hair ranges from 2 to 6
5. The pigment
that gives hair its color is called.
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.
brunettes, and redheads all have about the same number of hairs on their
False. The average healthy scalp contains approximately 100,000
However, blondes tend to have up to 140,000, brunettes approximately
and redheads have less than average - about 90,000.
7. Your hair
grows fastest between the ages of 15 and 30.
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
women between the ages of 16 and 24.
8. A man has as
many hairs on his hand as a chimpanzee.
True. The difference is that the hairs on the human hand are shorter
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
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
a. 2 feet
b. 5 feet
c. 8 feet
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,
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.
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.
hair is characteristic of the Caucasian (white) race.
False. Caucasian hair is an intermediate type, neither bone
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.
11-12 Excellent! You really know your
"hairs" pretty good!
9-10 Great job!
7-8 Not bad - you're above average!