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one pound of fat is how many calories? 3500 underfat is how much percent for females? less than %12 overfat is how much percent for ad. females? over 25% obese is how much percent for females? over 30% psychiatric in nature, food is the mechanism not the problem eating disorder overfat is how much for ad. males? over 20% obese is how much for males? over 25% av. % body fat for adolescent females 12% to 24% the portion of your body made up of bones, muscles, organs, everything except fat lean body weight minimum fat necessary in the body essential fat exceeding an ideal weight overweight 20% or more above optimal weight for body shape, size obese body type somatype slender, leaner somatype ectomorph heavier, rounder somatype endomorph muscular somatype mesomorph potential stressors activators effects of a reaction to stress consequences physiological changes associated with stress stress response stress resulting from pleasant stressors eustress stress resulting from unpleasants stressors distress which systems do stressful experiences stimulate? nervous and endocrine survival mode fight-or-flight response : a division of the autonomic nervous system that reacts to danger or challenges by almost instantly putting the body in high gear. sympathetic nervous system a division of the autonomic nervous system that tones down the excitatory effects of the sympathetic nervous system; slows metabolism and restores energy reserves. parasympathetic nervous system a steroid hormone secreted by the adrenal gland, increases blood glucose. cortisol : a part of the brain that activates, controls, and integrates the autonomic nervous system, the endocrine system, and other bodily functions. hypothalamus the special group of nerves that automatically control some of the body's organs and their functions, these nerves connect the physiological control centers of the brain with virtually all of the body's tissues and organs. autonomic nervous system general adaptation syndrome three steps? alarm, resistance, exhaustion a hormone secreted by the adrenal gland, also called adrenaline increases heart rate, activates muscles. epinephrine