More severe symptoms include fever, chills, and a jaundice. Jaundice is a condition where bile is backed up into the liver when gallstones block the cystic duct. This causes the bile to be forced into the bloodstream, where it will travel and cause your skin and the whites of your eyes to turn yellow.
The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
It is an excerpt from Carl Sagan's quote. Our Sun is a second- or third-generation star. All of the rocky and metallic material we stand on, the iron in our blood, the calcium in our teeth, the carbon in our genes were produced billions of years ago in the interior of a red giant star. We are made of star-stuff. Hydrogen was the only element available when Universe was created.