Watermelon and Asthma Prevention (see how)

Asthma affects nearly 9% of children and almost 7% of adults ( 19 ).
Of this figure, about 70%–90% of people with asthma also suffer from something known as exercise-induced asthma, where any type of physical exertion leads to asthma-like symptoms.
When we breathe normally, our nose clears, warms, and moistens the air around us.
On the other hand, during physical exercise, we end up breathing harder, faster, and deeper through our mouths, so the air that enters our lungs is colder and drier than usual.
In people with asthma, the bronchi are highly sensitive to such dry air and might swell up, as a result, leading to being unable to breathe fully — an asthma attack ( 19 ).
People without asthma, however, do not have bronchi in their lungs that are as sensitive and therefore do not overreact when coming in contact with cold, dry air.
Studies have found that there may be a link between the consumption of certain nutrients and a person’s risk for asthma.
One of the nutrients in question is ascorbic acid, or vitamin C ( 19 ).
Many tests have been conducted to determine if vitamin C helps protect the hyperactive airways of people with exercise-induced asthma ( 20 ).
Results are varied, so no conclusive evidence can be determined.
Although research has not found a statistically significant answer, numerous patients in such studies benefit from vitamin C treatment therapy, suggesting that although we have not found an answer yet, vitamin C might help treat or prevent asthma.