The deeper the sunglasses color is, the more it can protect eyes. In fact, too deep lens color will affect the eye visibility, easily damaging the eyes. Summer sunglasses lenses should be able to pass through 30% of the visible light, gray and green are better, because these colors can not only resist ultraviolet radiation, but also make the definition reach the best.
Misunderstanding 2: Clothes
Trip to wear less clothes, you will feel more cool. In fact, baring arm can increase the skin radiation and conduction to dissipate heat when the skin temperature is higher than the ambient temperature, while the air temperature is close to or over 37 Celsius, the skin can not radiate the heat, but absorb the heat from outside ambient, so in high summer, men without shirt and women with short skirt will feel more heat. Travel to wear light-colored silk clothes is the best.
Misunderstanding 3: Beer
Drinking beer can help to relieve summer-heat on a trip. In fact, travel in summer make tourists sweat more and be easily tired, if then keep drinking beer, which will cause hot feeling by alcohol and sharpen the thirst and sweating phenomenon and reduce the thinking ability. The active vitamin beverage is your best choice to slake your thirst and relieve summer-heat.