What is the term for being likely to be influenced or harmed by a particular thing?

The term "susceptible" refers to the likelihood of being influenced or harmed by a particular thing. It is often used in various contexts, such as in health, where individuals may be described as susceptible to certain diseases or conditions based on their genetic, environmental, or lifestyle factors. In psychological contexts, someone might be susceptible to persuasion or manipulation due to their personal beliefs or experiences, indicating an openness or vulnerability to external influences. This term encapsulates the idea of being at risk or having an increased chance of experiencing negative effects from certain conditions or stimuli, making it the most fitting choice for this question.