Final answer:
The three main psychological aspects of survival are the fight or flight response, stress reactivity, and psychological safety, all of which are critical for maintaining mental health and well-being in the face of both physical and psychological threats.
Step-by-step explanation:
The three main psychological aspects of survival are fight or flight response, stress reactivity, and psychological safety. The fight or flight response is an evolutionary trait that enhances an individual's ability to respond to perceived threats, which can be both physical and psychological. However, constant psychological threats in the modern world can lead to negative health consequences like heart disease and impaired immune system function. On the other hand, stress reactivity is influenced by early life experiences, including trauma, which can affect an individual's susceptibility to stress. Lastly, psychological safety is crucial for individuals, particularly for those who have experienced trauma, as it pertains to the well-being and mental health of a person, ensuring they are not further harmed by sharing their experiences.