Your exposure to sunlight is limited. Because the body makes vitamin D when your skin is exposed to sunlight, you may be at risk of deficiency if you are homebound, live in northern latitudes, wear long robes or head coverings for religious reasons, or have an occupation that prevents sun exposure.raditionally, vitamin D deficiency has been associated with rickets, a disease in which the bone tissue doesn't properly mineralize, leading to soft bones and skeletal deformities. But increasingly, research is revealing the importance of vitamin D in protecting against a host of health problems.
1 Make sure you include a possessive apostrophe in âValentineâs Dayâ. 2  The day is named for Saint Valentine, so it âbelongsâ to him. ( 3 Check our guide to apostrophe usage if youâre not sure why this matters.) Modern usage generally drops the âSaintâ or âStâ prefix, though you can throw it in if you like.
It's is a contraction for it is and its is a possessive pronoun meaning belonging to it.. It's raining out = it is raining out. A simple way to remember this rule is the fact that you don't use an apostrophe for the possessive his or hers, so don't do it with its!). INCORRECT: a friend of yours'.o form the plural of a lowercase letter, place 's after the letter. There is no need for apostrophes indicating a plural on capitalized letters, numbers, and symbols (though keep in mind that some editors, teachers, and professors still prefer them). Here are some examples: