Answer:
this is because the child's immunity system has improved and the child's immune system can fight all the know bacterias that were given through the antibiotics...
While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.
All can be affected by your social and emotional health as well as nutrition
ADD
OCD
Insomnia
Schizophrenia
Sensory anxiety
Social anxiety
Asthma
Dyslexia
Dyscalculia
Common cold
Flue
(Dude, there is a lot of health challenges mental and physical.)