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there feel like mark zuckerberg every , unlike lots of chocolate, lots of smiling can actually make you healthier. smiling can help reduce the level of stressenhancing hormones like cortisol, adrenaline and dopamine, increase the level of moodenhancing hormones like endorphin and reduce overall blood pressure. 英語演講稿4 one day in 1819, 3,000 miles off the coast of chile, in one of the most remote regions of the pacific ocean, 20 american sailors watched their ship flood with seawater. heyd been struck by a sperm whale, which had ripped a catastrophic hole in the ships hull. as their ship began to sink beneath the swells, the men huddled together inthree small men were 10,000 miles from home, more than 1,000 miles from the nearest scrap of land. in their small boats, they carried only rudimentary navigational equipment and limited supplies of food and