Dietary fats are important because they are the ones that produce  energy for the body. Fats should be monitored since excessive fats  can be risky for your health.
Age last birthday: One method of insurance rating which rates people a their age as of their last birthday, with such rating held until the next birthday. If your policy is approved at your current age (prior to your next birthday), you will be rated at your current age (as opposed to age nearest birthday).
Age = DateDiff(yyyy, Birthdate, Date) to calculate age, but this doesn't quite work. If the birth date hasn't yet occurred this year, the Age value will be off by 1. For example, imagine your birthday is December 31, and you were born in 1950. If today is October 1, 1997, subtracting the year portions of the two dates (1997 â 1950) would indicate that you were 47 years old.