The graph represents the effect of increased stress on the performance of the body. The lower the stress levels are in the body, the less likely the<unk>  model will have a significant effect on the brain and health. Although, an increase in stress levels results in an increase in stress on the brain and the health of individuals, making it more likely for the body to have significant effects on homeostasis and cause breakdown of the body systems.<unk>  is "the wear and tear on the body" which accumulates as an individual is exposed to repeated or chronic stress. The term was coined by Bruce McEwen and Stellar in 1993. It represents the physiological consequences of chronic exposure to fluctuating or heightened neural or neuroendocrine response which results from repeated or prolonged chronic stress.
Allostatic load
Stress shielding
Surgical stress
Stress 
Chronic stress
Tissue stress
Pressure overload
Overtraining