Dark purple spots keep showing up on my hands, and my doctor appointment is weeks away. What should I do in the meantime? — Page 2

When you boil eggs, several chemical processes occur inside the shell. Most of the time, these reactions result in a creamy yolk and firm white. But if the egg stays too hot for too long, the process changes.

The green ring occurs because of two simple ingredients found naturally in every egg:

• Sulfur — located in the egg white

• Iron — found in the yolk