Researchers in the United Kingdom recruited thirty participants to listen to motivational synchronized music, non-motivational synchronized music or no music while they walked on a treadmill until they reached exhaustion levels. Measurements showed that both music conditions increased the length of time participants worked out (though motivational music increased it significantly more) when compared to controls. The participants who listened to motivational music also said they felt better during their work out than those in the other two conditions.
Jane worked at home designing greeting cards, a job she used to love but now felt had become routine. Two little girls who loved to draw and paint lived next door. Eventually, Jane invited the girls in to play with all the art supplies she had. At first, she just watched, but in time she joined in. Laughing, coloring, and playing pretend with the little girls transformed Jane’s life. Not only did playing with them end her loneliness and boredom, it sparked her imagination and helped her artwork flourish. Best of all, it rekindled the playfulness and spark in Jane’s relationship with her husband.
Doses of caffeine equivalent to the amount normally found in standard servings of tea, coffee and carbonated soft drinks appear to have no diuretic action.  However, acute ingestion of caffeine in large doses (at least 250–300 mg, equivalent to the amount found in 2–3 cups of coffee or 5–8 cups of tea) results in a short-term stimulation of urine output in individuals who have been deprived of caffeine for a period of days or weeks.  This increase is due to both a diuresis (increase in water excretion) and a natriuresis (increase in saline excretion); it is mediated via proximal tubular adenosine receptor blockade.  The acute increase in urinary output may increase the risk of dehydration . However, chronic users of caffeine develop a tolerance to this effect, and experience no increase in urinary output.