Answer:
Sleep deprivation can cause the body to react as if it is in distress, releasing more cortisol, the stress hormone. Cortisol is the hormone that triggers your fight or flight response in the face of danger, raising your heart rate in preparation for a fight. Sleep disruptions can further disrupt your HPA axis, causing cortisol production to be distorted. Insomnia and other forms of sleep loss have been shown to cause your body to generate extra cortisol during the day, maybe to boost alertness.
Explanation:
The body's natural stress reaction kicks in during times of tension, starting with a cascade of hormones that make us feel more alert and cause subsequent physiological changes.
source: HealthGuidance for better health
‘static’ – meaning still/motionless, and ‘contraction’ – meaning to tense the muscles and use them. So the idea then in static contraction is simply to force your muscles to work without actually moving. That might sound ridiculous, but it doesn’t mean simply standing on the spot tensing but using a different technique to work muscles without moving – pushing or pulling against an immovable force. F
Illness is considered a behavioral stressor: True
A is the answer for this question.