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Stand with your legs wide apart, toes turned out and arms at your sides. Squat until your thighs are parallel to the floor and you're low enough to touch it with your fingertips (A). Immediately jump up as high as you can, keeping your legs wide and extending your arms straight overhead (B). That's one rep. Do three sets of 12 to 15 reps, resting for 30 seconds between sets.
Exercise acts as a temporary diversion to daily stresses and it improves self-esteem. Increased core temperature during exercise may lead to reduced muscle tension and favourable alterations in brain neurotransmitters. Mood improvements may also occur due to the increased secretion of endogenous (internal) opiates, e.g. endorphins. Psychological changes may occur because of changes in norepinephrine, dopamine and serotonin, all hormones which can affect mood and anxiety levels.