Clubbing is a painless enlargement and flattening of the tips of fingers or toes caused by chronic hypoxia. Hypoxia is deficiency in the amount of oxygen reaching the tissues.
i believe the answer is to cope with negative emotions.
Hey! You can improve and maintain good health of an elementary school age child by making sure they get regular enjoyable exercise, have proper healthy balanced meals, and that they are learning and interacting with others their own age well. I wish you all good health and positive energy! :) - Aspen