In the event of a nuclear detonation, which body part should you particularly protect?

Protecting your face during a nuclear detonation is particularly important because it is one of the most vulnerable areas of the body. The face includes critical sensory organs like the eyes and mouth, which can be directly harmed by the intense heat, radiation, and debris associated with a nuclear explosion. Additionally, the face is crucial for breathing and overall communication. Any exposure to fallout or immediate blast effects can severely affect these functions, making it vital to shield this area to prevent injury and maintain the ability to react or seek safety.

In contrast, while it's also necessary to protect the chest, arms, and legs, the face stands out as the most significant area due to the potential for immediate detrimental effects, including blindness or burns.