4. https://www.sleepfoundation.org/articles/social-media-and-sleep
5. https://www.verywellmind.com/social-media-addiction-4160913
6. https://www.psychologytoday.com/us/blog/liking-the-child-you-love/201801/social-media-and-mental-health-the-good-the-bad-and-the-ugly