<P> Modern lifestyles and mobility have created mismatch between skin color and environment for many individuals . Vitamin D deficiencies and UVR overexposure are concerns for many . It is important for these people individually to adjust their diet and lifestyle according to their skin color, the environment they live in, and the time of year . For practical purposes, such as exposure time for sun tanning, six skin types are distinguished following Fitzpatrick (1975), listed in order of decreasing lightness: </P> <P> The following list shows the six categories of the Fitzpatrick scale in relation to the 36 categories of the older von Luschan scale: </P> <Table> <Tr> <Th> Type </Th> <Th> Also called </Th> <Th> Sunburning </Th> <Th> Tanning behavior </Th> <Th> Von Luschan's chromatic scale </Th> </Tr> <Tr> <Td> </Td> <Td> Light, pale white </Td> <Td> Always </Td> <Td> Never </Td> <Td> 0--6 </Td> </Tr> <Tr> <Td> II </Td> <Td> White, fair </Td> <Td> Usually </Td> <Td> Minimally </Td> <Td> 7--13 </Td> </Tr> <Tr> <Td> III </Td> <Td> Medium, white to light brown </Td> <Td> Sometimes </Td> <Td> Uniformly </Td> <Td> 14--20 </Td> </Tr> <Tr> <Td> IV </Td> <Td> Olive, moderate brown </Td> <Td> Rarely </Td> <Td> Easily </Td> <Td> 21--27 </Td> </Tr> <Tr> <Td> V </Td> <Td> Brown, dark brown </Td> <Td> Very rarely </Td> <Td> Very easily </Td> <Td> 28--34 </Td> </Tr> <Tr> <Td> VI </Td> <Td> Very dark brown to black </Td> <Td> Never </Td> <Td> Never </Td> <Td> 35--36 </Td> </Tr> </Table> <Tr> <Th> Type </Th> <Th> Also called </Th> <Th> Sunburning </Th> <Th> Tanning behavior </Th> <Th> Von Luschan's chromatic scale </Th> </Tr>

How many types of skin color are there