What is hypoxia?

Hypoxia is a condition characterized by an inadequate supply of oxygen to the tissues, particularly affecting vital organs like the brain. This deficiency can lead to a range of physiological and cognitive impairments, such as confusion, reduced mental clarity, or even loss of consciousness. The brain is especially sensitive to oxygen levels, so when hypoxia occurs, it can severely disrupt normal brain function and therefore impact overall bodily functions.

The other options do not accurately describe hypoxia. For instance, a state of excessive oxygen in the body is known as hyperoxia, which is distinct and does not involve oxygen deficiency. The description of a condition that increases physical strength is unrelated to hypoxia, as hypoxia typically results in weakness and fatigue instead of strength. Lastly, a change in body temperature pertains to thermoregulation and is not connected to the concept of hypoxia, which focuses explicitly on oxygen availability.