If you cook eggs for breakfast, no matter if they are fried or scrambled, and then leave them for later, you should know that you must eat them cold.
Eggs, like chicken, can make toxic substances after they were cooked, cooled, and then reheated again, especially when you choose the highest temperatures when reheating.
It is not the rule for the foods where the eggs are part of sauces like béchamel, but the rule refers to meals with boiled or fried eggs. It might sound silly, especially if you have reheated the eggs and eaten them before with no consequences. If it was so, you just might have been lucky, but if you don’t want to experience a really bad food poisoning, we give you the advice to quit while you are ahead and avoid reheating these dangerous foods.