What can asphyxiants, like nitrogen, ultimately cause in humans?

Asphyxiants, such as nitrogen, are gases that can displace oxygen in the air. When a person inhales an asphyxiant, the concentration of oxygen available for respiration is decreased, which can lead to a range of serious health issues. At high concentrations, an asphyxiant can lead to life-threatening conditions, primarily by preventing the body from receiving enough oxygen, ultimately resulting in unconsciousness or death.

The body relies on a sufficient level of oxygen to maintain vital functions. When oxygen levels drop, cognitive function declines, the heart rate can become irregular, and, if the lack of oxygen continues, it can lead to irreversible damage to the brain and other organs. This is particularly critical in environments where asphyxiants are present in significant amounts, making the risk of unconsciousness or death a real and immediate threat.

In contrast to other potential effects listed in the choices, such as headaches or chronic fatigue syndrome, these conditions do not arise directly from oxygen deprivation caused by asphyxiants. Lung cancer is also unrelated as it is more often linked to carcinogenic substances rather than to a lack of oxygen. Understanding the severe implications of exposure to asphyxiants like nitrogen is crucial for safety awareness and intervention in environments where