Pledge to eat a healthy breakfast this morning to fuel your workout later in the day. Challenge details: Skipping breakfast can cause a big dip in your blood sugar and energy levels later in the day. That may make it harder to get to your workout, much less through it. Try to eat a balanced breakfast that has both healthy carbs and lean protein. If you have a large breakfast, time your workout for 1 to 3 hours later. If you work out in the morning, opt for a smaller breakfast or snack beforehand. Make sure to talk with your doctor before starting any new fitness routine.