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We ask three doctors all about bright yellow urine: here’s what they said. Harley Street nutritionist Clarissa Lenherr described the ideal wee as “lemonade colour with a light yellow hue,” when we ...

Urine color can be a key indicator of hydration and health. Light yellow or pale urine signals good hydration, while darker colors may suggest dehydration. Unusual colors or cloudiness can ...

I have dyed my hair every color under the sun, so I know a good shampoo for color-treated hair has a lot to get right. I want one that preserves my new color and undoes some of the damage that ...

A urine drug test can quickly detect both illegal and prescription drugs in a person’s system. Doctors, sports officials, and many employers require these tests. Signs of drug use can remain in ...

Now we can add whale urine to that list, according to a paper published in the journal Nature Communications. “Lots of people think of plants as the lungs of the planet, taking in carbon dioxide ...

Of the four main eye colors (brown, blue, green, and hazel), the rarest eye color is green. However, new classifications say another color is even rarer: gray. Brown is the most common worldwide, ...

Does everyone experience colour in the same way? A new investigation into this long-standing philosophical question has provided the strongest evidence yet that people with typical colour vision ...