I would say building resilience is the answer that makes the most sense as seeing its the only thing that effects your health positively.
Answer:
producing insulin
Explanation
Diabetes results from the body inability to produce insulin.
The lungs recoil to force the air out of the lungs. The intercostal muscles relax, returning the chest wall to its original position. The diaphragm also relaxes, moving higher into the thoracic cavity.
Answer:
The reason her grandfather might understand her father better than hers could be because it's his son. Her grandfather raised her father. Which could effect their communication.