The term "susceptible" refers to a state of being easily affected or harmed by external factors. This can apply to individuals, groups, or systems that lack the resilience to withstand certain challenges, such as diseases, environmental changes, or social pressures. For example, children and the elderly are often considered more vulnerable to illnesses due to their weaker immune systems. In a broader context, susceptibility can also relate to economic or social factors that make certain populations more prone to hardship. For instance, communities with limited access to resources may be more susceptible to the impacts of natural disasters or economic downturns, highlighting the importance of support and intervention.