When I became certified as a personal trainer, our instructor showed the class a cartoon. 
A doctor said to a patient, "So, you don't have an hour a day to exercise?
Do you have 24 hours a day to be dead?"

Exercising should come before your chores, errands, and other daily pressures. 
If you don't have your health, you won't be able to work productively or truly enjoy
time with friends and family. Take care of yourself and you'll be able to take care of everything else.

According to the U.S. Department of Health and Human Services,
regular physical activity improves health in the following ways: 

• Reduces the risk of dying prematurely
• Reduces the risk of dying from heart disease
• Reduces the risk of developing diabetes
• Reduces the risk of developing high blood pressure
• Helps reduce blood pressure in people who already have high blood pressure
• Reduces the risk of developing colon cancer
• Reduces feelings of depression and anxiety
• Helps control weight
• Helps maintain healthy bones, muscles and joints
• Helps older adults become stronger and better able to move about without falling
• Promotes psychological well-being