Drinking lemon water and sunbathing will not make you darker.

Lemon is a photosensitive fruit. Drinking lemon water during the day will cause skin spots and darken. In fact, from a scientific point of view, photosensitive substances mainly include chlorophyll, riboflavin and heme. These substances are widely present in people's food. If you eat photosensitive substances, you will develop spots, and then people will have nothing to eat during the day. Okay, obviously this view is absurd. Furthermore, the organic acids in lemon water will corrode the tooth surface and damage tooth enamel. If you drink a lot of lemon water at night and do not clean your teeth in time, it will easily lead to dental caries.