In the aging process, digestive system gradually slows down and intestines start to shrink. The stomach, liver, pancreas and small intestine may decrease secretions. Constipation may start to increase.
You will need to maintain a healthy weight. Since your metabolism slows down, your body consumes fewer calories. As for the unused calories, they will be stored as fat. When your physical activities decrease, your weight can easily increase. Extra body weight can cause various health issues. Inactive lifestyles, or lack of physical exercise, affects various body systems and thus accelerates the aging process.