Cultural aspects thumb|left|Édouard Manet: Le déjeuner sur l'herbe (1862–63) The effect of sunlight is relevant to painting, evidenced for instance in works of Édouard Manet and Claude Monet on outdoor scenes and landscapes. thumb|Téli verőfény ("Winter Sunshine") by László Mednyánszky, early 20th century Many people find direct sunlight to be too bright for comfort; indeed, looking directly at the Sun can cause long-term vision damage. To compensate for the brightness of sunlight, many people wear sunglasses. Cars, many helmets and caps are equipped with visors to block the Sun from direct vision when the Sun is at a low angle. Sunshine is often blocked from entering buildings through the use of walls, window blinds, awnings, shutters, curtains, or nearby shade trees. Sunshine exposure is needed biologically for the production of Vitamin D in the skin, a vital compound needed to make strong bone and muscle in the body.
Cultural aspects thumb|left|Édouard Manet: Le déjeuner sur l'herbe (1862–63) The effect of sunlight is relevant to painting, evidenced for instance in works of Édouard Manet and Claude Monet on outdoor scenes and landsc,apes. thumb|Téli verőfény ("Winter Sunshine") by László Mednyánszky, early 20th century Many people find direct sunlight to be too bright for comfort; indeed, looking directly at the Sun can cause long-term vision damage. To compensate for the brightness of sunlight, many people wear sunglasses. Cars many helmets and caps are equipped with visors to block the Sun from direct vision when t,he Sun is at a low angle. Sunshine is, often blocked from entering buildings through the use of walls, window blinds awnings, shutters, curtains or nearby shade trees. Sunshine exposure is needed biologically for the production of Vitamin D in the skin, a vital compound needed to make strong bone and muscle in the body.