Coffee contains caffeine, which can stimulate nerves and keep you excited. Therefore, drinking coffee in moderation can refresh your mind and keep your spirits high.
Tea or tea beverage.
The reason why tea can refresh people is similar to coffee, mainly because the caffeine contained in tea can activate nerves. Drinking a cup of tea (or tea beverage) when you are sleepy can relieve drowsiness and have a refreshing effect.
Fruit.
There are really many fruits that have magical refreshing effects, such as strawberries, bananas, lemons and other fruits with more vitamin C that can refresh you. Bananas can also replenish energy. If it's because of fatigue, you'd better eat some bananas.
Functional drinks.
Sports functional drinks such as Red Bull, Pulse and Gatorade can also refresh you. For example, red bull contains taurine, which is an ingredient that supplements energy and refreshes the mind. However, it is not recommended to drink this kind of drink often, and it can still be used in case of exams or occasional overtime.
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Mint.
The refreshing effect of mint must be well known, because its stimulating taste is refreshing enough. Eating mints when you are sleepy must have a very good refreshing effect.