Answer:
The main pointer to choking would be the child's skin.
Explanation:
The child's skin looks blue due to the blood. Blood that is rich in oxygen looks red, while blood with little to no amounts of oxygen appears dark blue. The dark blue, poorly oxygenated blood is showing through the skin, warning the person that the infant is choking.
If there is a new disease or virus of some sort, they would need to keep aware of how to fix them. For example if there was an amazing cure for cancer doctors would have to know and treat their patients.
Laxatives. Laxatives are a drug that causes drastic bowl movements.
Starvation. Not eating in order to lose weight is not a good idea, in fact it's possible to have bloating using this method
Over the counter diet pills. Diet pills do not help burn fat, or prevent fat from developing.