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Answer:
"Extrinsic factors that can cause esophageal blockage include compression of the neck and lesions in the central nervous system that affects the muscles in the esophageal wall. The following are some of the common causes of esophageal blockage. Obstruction due to foreign object or food. Food and foreign objects can cause a blockage of the esophageal lumen."
A decrease attention span is not likely a result of regular activity. In fact, it would be the opposite way around.
Answer:
Blood
Explanation:
because tobacco smoke contains carbon monoxide this deadly gas displaces the oxygen in your blood blood crabbing your organs of the oxygen they need
