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).
- If you have not yet had your birthday this year:   subtract the year you were born from last year  (e.g. 2014 - 1952 = 62 so you turned 62 on your birthday  last year, and will turn 63 in 2015)  This also works to find out what age a celebrity will be  on their birthday in any given year.