You're trying to lose weight and think that eating less will get you to your goal faster. While cutting calories definitely helps, you want to be careful not to eliminate entire meals, especially breakfast — just because you're busy and short on time doesn't make this a good idea. Skipping meals could be one of the worst ways to lose weight and here's why. When you skip a meal (or two, or three), your body starts to wonder why it's not getting any food and it will go into starvation mode. Then it reacts by slowing down your metabolism, which means slower weight loss — not exactly the results you were going for. Plus, not eating will also give you a headache, make you feel dizzy or sleepy, and make for one cranky, hungry person. Try not to go more than three or four hours between meals and snacks.