Breakfast should always be eaten after you wake up to start your day.
When you don't eat breakfast and wait until lunch time to eat a meal then your body doesn't have enough fuel in the morning to give you energy.
Our bodies need proper fuel to work correctly so eating breakfast is very important for your overall health and to give you energy in the morning and until lunch time.
Even eating a quick bowl of cereal for breakfast is better than having no breakfast at all.
You can also drink some breakfast shakes if you don't have time to eat a proper breakfast.