What can increase the risk of HACE?

The correct choice highlights a critical factor that contributes to the onset of High Altitude Cerebral Edema (HACE), which is the continuation to higher elevations. When an individual ascends to higher altitudes without allowing sufficient time for acclimatization, the body struggles to adapt to the lower levels of oxygen available at these elevations. This can lead to increased pressure in the brain and the potential accumulation of fluid, resulting in HACE.

Understanding how altitude impacts the human body is essential for minimizing the risks of altitude sickness. As one continues to ascend without acclimatization, the likelihood of developing symptoms of HACE increases significantly. Proper acclimatization typically involves ascending gradually, allowing the body to adjust to changes in environmental conditions.

In contrast, decreasing altitude, staying hydrated, and resting adequately are all measures that do not create additional strain on the body and can actually help mitigate the risks associated with altitude sickness.