14 Common Morning Mistakes That Leave You Exhausted All Day

9. Consuming High-Sugar Breakfasts

While sugary cereals and pastries may be convenient breakfast options, they can lead to energy crashes later in the morning. High-sugar foods cause a rapid spike in blood sugar levels, followed by a sharp decline, resulting in fatigue and irritability. Instead, opt for breakfasts that include complex carbohydrates, protein, and healthy fats. These nutrients provide sustained energy and help maintain stable blood sugar levels, keeping you alert and focused throughout the morning.