What are the lights I see when I close my eyes?

These small lights are usually phosphenes, a visual phenomenon caused by mechanical stimuli resulting in pressure or tension on the eye when the eyelids are closed.

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Consequently, what's the prettiest hair color?

Sorry blondes, but 60% of the men in question said they find brunette to be the most desirable. A third of the men polled (33.1%) said they think the most attractive hair color is brown hair, while 28.6% said they prefer black hair. That means that in total, 59.7% of men said they prefer women with dark hair. What is the most beautiful color? Studies reveal that red is the most attractive colour to both men and women but, curiously, the two genders are attracted to the same colour for different reasons.

Accordingly, what color can humans not see?

Red-green and yellow-blue are the so-called "forbidden colors." Composed of pairs of hues whose light frequencies automatically cancel each other out in the human eye, they're supposed to be impossible to see simultaneously. Then, why would a woman wear red? National Wear Red Day is intended to help raise awareness of heart disease, in particular among women. Heart disease is often generally associated with men, but cardiovascular disease is the number one killer of women. Every year, nearly 500,000 American women die from heart disease and stroke.

What's the ugliest color?

Pantone 448 C Pantone 448 C, also dubbed "the ugliest colour in the world", is a colour in the Pantone colour system. Described as a "drab dark brown", it was selected in 2012 as the colour for plain tobacco and cigarette packaging in Australia, after market researchers determined that it was the least attractive colour.