What are the three factors that increase Soldiers' susceptibility to DNBI?

The correct answer highlights three critical components that can significantly contribute to a Soldier's vulnerability to Disease Non-Battle Injury (DNBI).

A breakdown in hygiene practices is essential, as maintaining appropriate hygiene is crucial to preventing illnesses that can arise from poor sanitation and cleanliness. Soldiers in the field may encounter situations where hygiene is compromised, leading to an increased risk of infections or diseases that easily spread in such conditions.

Natural defenses refer to the body’s innate ability to fend off illness, which can be weakened by factors like stress, fatigue, or inadequate nutrition. When Soldiers are under duress or not properly nourished, their immune systems are less capable of fighting off pathogens, thereby increasing susceptibility to disease.

The harsh environment, including exposure to extreme temperatures, wet conditions, or unsanitary surroundings, can exacerbate health risks. Environmental factors can lead to conditions such as heat-related illnesses or respiratory problems, particularly if Soldiers are not acclimatized or are lacking proper gear.

Together, these factors create a perfect storm that can overwhelm a Soldier's ability to maintain health, leading to a higher incidence of DNBI. The other options, while they contain elements relevant to Soldier performance and health, do not address the three specific factors mentioned in the context of DNBI