One byproduct of energy production in the body that at high levels causes muscle fatigue is ________.

Respiratory Condition

A broad term for any disorder that affects the lungs or breathing pathways, impacting the ability to breathe well.

Chest Tightness

A symptom commonly associated with respiratory conditions, anxiety, or cardiovascular issues, characterized by a constricted feeling in the chest.

Wheezing

A high-pitched whistling sound made while breathing, often associated with difficulty in breathing and related to conditions like asthma or bronchitis.