I believe the answer is the systemic circuit
Hypertension can be prevented by all of the above.
Hypertension is basically high blood pressure. Although it is a serious thing that can increase strokes, heart diseases, and kidney diseases, you may hear people say, 'calm down, your blood pressure is going up'. Hypertension can definitely be prevented by a balanced diet (can keep your blood pressure under control), regular exercise (doctors say to for 30 minutes each week if one has high blood pressure), and having a healthy weight (weight is crucial with hypertension).
I think the answer would be insecurity as he feels inferior to his peers in a specific area. He feels ashamed/embarrassed that he may not be as smart.
Dig a hole and burry the body. Tell no one.
Hypervitaminosis is a condition of abnormally high storage levels of vitamins
Hypercalcemia is over activity in the four tiny glands in the neck (parathyroid glands) or from cancer