Which factor does NOT influence how well someone can withstand the effects of fire?

The location of the fire does not directly influence an individual's ability to withstand the effects of fire in a psychological or physiological sense. While the location can affect whether a person is exposed to smoke, heat, or flames, it does not change the inherent resilience or vulnerability of the person themselves.

Factors such as the size of the person can influence how quickly they succumb to environmental hazards because larger individuals may have greater body mass to absorb heat, while smaller individuals might succumb more swiftly. Age is a significant factor since very young children and older adults are generally more susceptible to the effects of smoke inhalation and thermal injury. Pre-existing medical conditions also play a crucial role; individuals with respiratory issues or other health concerns may have a diminished capacity to handle the stress of smoke and heat compared to healthier individuals.

Thus, while the surroundings and the specific circumstances of a fire are important for immediate survival, they do not alter the fundamental characteristics of the individual that determine how well they can withstand fire-related dangers.