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).
middle age - the time of life between youth and old age (e.g., between 40 and 60 years of age) time of life - a period of time during which a person is normally in a particular life state. adulthood, maturity - the period of time in your life after your physical growth has stopped and you are fully developed.