Which soldiers are most likely to suffer heat injuries?

The correct answer highlights the specific groups of soldiers who are particularly susceptible to heat injuries due to various risk factors. Soldiers who are not accustomed to higher temperatures, such as those from cooler climates or who have recently transitioned from another environment, are at greater risk because their bodies may not have adapted to the heat stress.

Overweight soldiers face added challenges due to increased body mass, which can impair the body's ability to dissipate heat effectively. Additionally, individuals who have experienced heat casualties in the past may have a lower threshold for heat tolerance due to diminished physiological responses. Already dehydrated soldiers are also at a higher risk, as hydration is crucial for regulating body temperature and maintaining physical performance in hot conditions.

In contrast, veteran soldiers may have more experience dealing with heat and have likely developed strategies to cope with high temperatures. All soldiers could imply a level of uniformity in risk that does not account for the nuanced factors affecting individual susceptibility to heat injuries. Younger soldiers typically have resilient bodies, but their lack of experience might lead to poor decision-making in heat management, making them generally less susceptible than the groups identified in the correct answer.