Which term would you associate with difficulty in breathing?

The term associated with difficulty in breathing is "dyspnea." Dyspnea describes the subjective experience of breathlessness or an uncomfortable awareness of breathing, which can occur in various conditions such as asthma, anxiety, or respiratory infections. It reflects a person's personal perception of their breathing effort and can vary in severity from mild to severe.

Hypopnea refers to an abnormally shallow or slow breathing pattern, which, while related to breathing difficulties, does not capture the overall experience of breathlessness that dyspnea does. Hyperventilation is characterized by rapid or deep breathing that may lead to decreased carbon dioxide levels in the blood, which can cause dizziness and tingling rather than a direct sensation of difficulty in breathing. Apnea is defined as a temporary cessation of breathing, often occurring during sleep, and while it is a significant concern, it represents a complete stop in breathing rather than a sensation of struggling to breathe.