Stress can have extremely damaging effects on the body if not properly managed or avoided. Survival situations are hard enough without adding the chaos caused by stress.
According to the American Institute of Stress (AIS) some of the more dangerous symptoms include: Difficulty concentrating, racing thoughts, Difficulty in making decisions, Feeling overloaded or overwhelmed, Feelings of loneliness or worthlessness, Overreaction to petty annoyances, Excessive defensiveness or suspiciousness, Increased anger, frustration, hostility.
If you know what causes you stress, plan for or avoid it. Some people need to feel that they are supported, in control, have something to look forward to, or just that they know what to do next.