药物可以改善那些影响情绪的脑化学物质的平衡性。
These medicines can improve the balance of brain chemicals that affect mood.
大约六个月后，他发现自己不再需要药物来提振情绪了。
After about six months, he finds he no longer needs the medication to keep his spirits up.
事实上，如果你想提高自己的情绪，不依靠日常饮食、锻炼和药物，这可能吗？
Indeed, if you want to boost your mood without diet, exercise, or pills?
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