But the arrival of the dockless bike-share model was received mostly with praise and excitement in a city that has embraced biking as a mode of transportation. Some biking aficionados said they hope the companies will indeed bring more bikes to underserved communities of the District, including the Northeast and Southeast quadrants.
It sounds super-gross but please try to imagine it: Red muscles, pink muscles, and white muscles. The red muscles are red because they contain lots of myoglobin: a protein that binds iron and oxygen. Your blood has a similar protein called hemoglobin which binds iron and oxygen.
Jaundice is the most common cause of the skin turning yellow. Liver problems, such as alcoholic liver disease or cirrhosis make up the second most common reason. Hypothyroidism, HIV, syphilis and other diseases can also trigger a sudden yellowing of the skin. Carotenemia causes the skin to turn orange.