Workers often post and bloggers frequently write articles about employees not taking breaks or their lunch hour in the workplace. Think about it, all that wasted break time when you could refresh your coffee, eat your lunch, chat with a friend or loved one on the phone, play a game, take a walk, or just veg out. Your breaks are not paid time, technically you have a four hour work day with a half-hour break, or an eight hour work day with two half-hour breaks, which means a half hour for lunch and two 15 minute breaks during the day or however you would like to break that time up. Besides the obvious problem of working and not truly being paid, you are actually making things worse for your productivity and mood by not taking those rest opportunities at work.
Recharging your batteries during the day is important and if you constantly work through lunch and your breaks you will often work slower, make more mistakes, have less patience for issues that come up, and begin to suffer from burn out. Take your breaks, for both yourself and your company and see your productivity and attitude improve. To your career success!