| A | B |
| controversial | Something that causes disagreements |
| practitioners | People who perform a certain skill, for example |
| asthma | A disease that makes it difficult to breathe and causes wheezing and coughing |
| skeptics | People who have doubts about something |
| significant | important |
| hypothesis | a tentative explanation (a guess) of a scientific problem that can be tested by further investigation. |
| experiment | A test under controlled conditions that is made to demonstrate a known truth or examine a hypothesis |
| clinical | based on direct observation of the patient |
| theory | A set of statements or principles devised to explain a group of facts, especially one that has been repeatedly tested or widely accepted and can be used to make predictions |
| potential | Having possibility, capability, or power |
| demonstrates | To show clearly and deliberately |