Which of these statements is true regarding the effects of stress on individuals involved in traumatic incidents?

The correct statement regarding the effects of stress on individuals involved in traumatic incidents is that they may experience physical symptoms weeks later. This illustrates the understanding that stress can have delayed effects on the body, manifesting as various physical symptoms such as headaches, digestive issues, or chronic pain even long after the initial traumatic event.

Research has shown that the body's response to trauma can lead to various physiological symptoms, and these responses can persist or emerge after the immediate aftermath of the incident. This concept is critical in recognizing the comprehensive impact of trauma on an individual's health, as it highlights the importance of ongoing support and monitoring for those who have experienced trauma.

The other options either misinterpret the relationship between stress and physical health or oversimplify the complexity of coping mechanisms following trauma. For example, stating that individuals are always physically unaffected does not account for the variability in individual responses to stress. Stress can indeed impact memory, contradicting the claim that it does not. Lastly, while emotional support is vital, it is not the only form of assistance that individuals may need after a traumatic event, indicating that a range of supports—including professional counseling, peer support, and medical attention—can be necessary for recovery.