<span>If Gertrude walks every day at 2:00pm, she is developing a habit. </span><span>The longer Gertrude sticks with it, the more likely it is she will </span>develop a habit<span> that she doesn'</span><span>t have to think about.
</span>Walking and sport will become part of her everyday life and it will be easier for her to do this activity and be healthy.
B/C (aerobic exercise strengthens heart & lungs)
