Which environmental factor can influence cold weather injuries?

The choice of metal objects as an influencing factor for cold weather injuries may reflect an understanding of how specific materials can affect body heat retention or loss. Metal objects can conduct heat away from the body more efficiently than other substances. When someone is in a cold environment and comes into contact with metal, the heat from their body is drawn away by the metal, potentially leading to an increased risk of cold weather injuries such as frostbite or hypothermia.

In contrast, temperature itself is inherently a critical factor in cold weather injuries, as it directly dictates the environment's chilliness. Humidity also plays a role since it can affect how the body perceives temperature and can impact sweat evaporation, influencing the risk factor for cold injuries. Lastly, the time of day can determine temperature fluctuations, which may also influence cold weather's impact on the body.