Busy schedules often diminish the amount of time people have to prepare healthy, nutritious meals, so they opt for faster, easier options. Whole foods such as vegetables and meat take time and kitchen equipment to cook properly, while fast food hamburgers are usually served within minutes of ordering. Over time, that convenience becomes a habit and eventually a perceived necessity to keep up with such a fast-paced society. Disrupting that routine requires an investment of time, and most people prefer to stick with the faster option.