In this digital age, it's grossly easy to access lifetimes upon lifetimes worth of information. Everything we've ever wanted and more is right at our fingertips. Though, because our screens are so easily accessible, they serve as one of the most prevalent distractions.
Social media is so popular, it's nigh impossible to find someone that doesn't use it. "Doomscrolling" is a phenomenon that's rapidly grown in popularity in the past couple of years since COVID-19. By definition, doomscrolling is the act of "spend[ing] excessive time online scrolling through news or other content that makes one feel sad, anxious, angry, etc." (Thank you, Merriam-Webster!). Though, I've personally seen the term used to refer to the consumption of short-form content in general (e.g. TikTok, Instagram Reels, YouTube Shorts, etc.)
Social media is designed to be a distraction. When a person engages in doomscrolling, it effectively "trains the brain" to seek instant gratification. It becomes harder to pull away from your screen to focus on more difficult activities that don't immediately provide a reward. The bar of entry is far lower when it comes to scrolling as opposed to doing work.
The human brain has a limited capacity for processing information. Meaning: it's difficult to multitask and still meaningfully absorb new information. Students, on average, spend about 6 minutes studying effectively before distracting themselves on their phones. Which essentially means that after this 6 minute mark, that student is multitasking and only being a fraction as efficient.