A recent study has found that preschoolers tend to have sleeping problems if they are exposed to violent cartoons. For the study, researchers observed the sleeping habits of 565 preschoolers. It was found that children who viewed television as per the guidelines of the government were less likely to have any sleeping problems.

The author of the study, Michelle Garrison, said, "Content that's funny for older kids can be too violent for really young children. We really don't want them exposed to any violence at all". Previous studies have also shown that kids exposed to violent videos tend to have emotional problems.

The findings of the study have been published in the journal Pediatrics. The findings of the study have directly indicated that too much exposure to screen can hamper the emotional behavior of the kids. Parents have been advised to limit the screening hours of the children so that their children can enjoy a good night sleep.

Besides, children should be exposed to educational content rather than violent one. In short, preschoolers should never be exposed to violent content screened on their televisions. Researchers have further found that children with sleeping disorder tend to turn obese in their later part of life.