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Our bodies can be younger or (old) than our actual age depending upon diet, lifestyle choices and physical activity. This is called biological(生理的) age, could be different from the age on your driver's license, which (call) chronological 时间的）age. recent study of over 900 adults who were tracked for 12 years, from ages 26-38, (show) that people who were aging faster, were not as healthy or (physical) fit. This group was also more likely (have) cognitive decline（认知衰退）.

A growing body of research proves that the (key) to aging successfully are a combination of exercising regularly, keeping busy with life, and maintaining a (health) diet with nutritious foods.

These three key elements could contributeaging gracefully, and successfully, too.