Final answer:
The three most common stress problems after returning from deployment are PTSD, depression, and substance abuse.
Step-by-step explanation:
The three most common and dangerous stress problems that veterans may experience after returning from deployment are post-traumatic stress disorder (PTSD), depression, and substance abuse.
PTSD: This is a chronic stress reaction characterized by intrusive and painful memories of the traumatic event, jumpiness, persistent negative emotional states, detachment from others, angry outbursts, and avoidance of reminders of the event. Veterans may experience flashbacks and struggle with isolation.
Depression: Returning from deployment can trigger feelings of sadness, hopelessness, loss of interest, and changes in sleep and appetite. Veterans may also experience difficulty concentrating and making decisions.
Substance abuse: Some veterans may turn to alcohol or drugs as a way to cope with the stress and emotional pain they are experiencing. Self-medication with substances can lead to addiction and other health problems.