Heidi Klum finds raising four children challenging.

German supermodel Heidi Klum – who has four kids, Leni (7), Henry, (5) Johan (4), and 21-month-old Lou, with her husband Seal – explained that taking care of their brood is a juggling act.

“It’s a huge responsibility to have four kids,” she told ‘US Weekly’. “They all have different likes and dislikes and activities that they want to do. You have to learn how to juggle all of that, and at the same time, give them each the love that they need.

“They always stick together and take care of each other. They love each other! They love helping Lou. They like to feed her [and] they include her in all their activities.

“When you have one [child], you can focus on one. With four, you have to make sure [your attention] is all spread out just right. You have to understand how different they all are! And at the end of the day, there is not much time left for you!”