Quick Answer. HowStuffWorks explains that food poisoning often occurs when a person eats spoiled food. Common symptoms of food poisoning are stomach pain, diarrhea, nausea, vomiting and cramping.
Confusion continues over coolant colors for cars. Of course, there is still the good old green stuff, but there is also orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Despite the rainbow of colors, all antifreeze starts out colorless.
Blue, as the color of a clear sky and a deep ocean, is one of the most popular colors. It causes the opposite reaction as red. Blue causes the body to produce calming, tranquilizing chemicals, so it is often used in bedrooms. Blue can also be cold and depressing.