Why should animals not be sedated during air travel?

Sedation during air travel can significantly increase the risk of cardiovascular issues in animals. When animals are sedated, their physiological responses are altered. Sedatives can lower heart rates and impair the animal's ability to regulate its body temperature, which can be especially dangerous in the confined and often stressful environment of air travel. Additionally, sedation may mask symptoms of underlying health problems, making it difficult to assess the animal's condition during transport.

The potential for adverse effects, such as respiratory depression and decreased blood flow, can lead to complications that might not be immediately apparent. Considering the stress of traveling and the confined space in an airplane, the physiological effects of sedation combined with the travel conditions can pose substantial risks to an animal's health.

Other options, while they might contain some truth, do not encompass the broad and serious implications of sedation on animal health as effectively as the increased risk of cardiovascular issues does, which is why this choice stands out as the most critical reason.