There is a difference between someone who is unhealthy and someone who is sick. Part of that difference is the viewpoint, from which we look. When we look from a medical viewpoint - we tend to find illness. When we look from a healthicine view point - we are more able to see and understand healthiness and unhealthiness.
Medicine is defined, by Wikipedia, as 'the science and art of healing'.
The body heals.
A disturbing trend has taken root in America. Mandating chemotherapy in children is equivalent to requiring parents to let others poison their children with chemicals that are themselves classified as carcinogenic. If a parent has not the authority to decide how or what their own child is treated, is the State or are medical institutions essentially laying claim to owning that child's body?