英语积累Day 30

过去我只把运动看作是改变体型的一种方式。但当我单纯为了外貌而锻炼时，往往无法坚持下去。你会失去动力，不断拿自己的身体做比较，对自己评价不高，而这仅仅源于体重就是会日复一日、月复一月地波动，这是很正常的。所以，如果一直只追求外在的改变，最终多少会觉得还是不满意。就我个人而言，每当我感到焦虑或心情有点糟糕时，哪怕只是在外面散个步，都会感觉好多了。在阳光下锻炼会自然提高体内的血清素，这是一种能影响心情的激素。运动本身也会产生内啡肽，从整体上改善心情，减轻压力。

I used to only see exercise as being something about physically changing the look of my body. When I say exercise for appearance purposes never lasts. You'll lose motivation, you'll constantly be comparing your body, and thinking poorly of yourself because it's normal for your body to fluctuate in weight day to day, month to month. So if you're constantly looking for physical change, you end up feeling kind of unfulfilled. I know personally, whenever I'm feeling anxious or a little moody, going for even just a light walk outside helps me feel so much better. Working out in the sunshine naturally increases your serotonin, which is a hormone that affects your mood. Exercise itself also produces endorphins, which overall boosts your mood and reduces stress.