Screen Time Has Detrimental Effects on Mental Health, Brain’s Gray Matter

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December 14, 2022 at 1:15 PM UTC

Excessive screen time can be bad for the brain at any age.

Clinical Relevance: Evaluate the amount and type of screen time in patients of all ages

  • The internet has made porn more accessible and this puts some people with specific personality traits and social attributes at risk.
  • Giving a young child a screen to distract them or calm bad behavior will have the opposite effect in the long run.
  • Video games and surfing online videos increases the risk of OCD in preteens.
  • Older people, especially those with type two diabetes, experience more pain as their TV viewing time increases.

Whether a brain is developing, aging, or somewhere in between, a slew of recent studies demonstrate just how detrimental screen time can be to gray matter. 

Screen time may hamper a child’s emotional regulation

What parent hasn’t used a screen to keep a child busy or help calm a tantrum? It turns out that this strategy may often have the opposite of its intended effect. 

University of Michigan Medical School researchers asked 422 parents of toddlers aged three to five how often they used a screen to help manage their child’s behavior, and how frequently their child acted out over a six month period. Greater use of digital devices was associated with higher emotional dysregulation, the JAMA Pediatrics study found. This was especially true of boys and children of either sex who were already struggling with handling their emotions.  

Shoving a screen under a child’s nose to distract from disruptive behavior is a bad idea, the researchers said, because it takes away a teaching moment for dealing with difficult emotions, and it can reinforce the message that outbursts will be rewarded.

Video games and video watching increase risk of OCD

Screen time among adolescents doubled during the pandemic and it did them no favors, especially if they spent more time playing video games or surfing YouTube, TikTok, and Instagram Reels, a new study suggests

For preteens, the odds of developing obsessive compulsive disorder (OCD) over a two-year period increased by 15 percent for every hour they played video games and by 11 percent for every hour they watched videos, according to a new national study led by UC San Francisco researchers published in the Journal of Adolescent Health.

The investigation looked at the screen habits of more than 9,000 nine- and 10-year-olds and then checked in with them two years later. At the check-in point, 4.4 percent of preteens had developed new-onset OCD with both video gaming and streaming connected to a higher risk of diagnosis. Interestingly, texting, video chat, and social media didn’t link individually with OCD, but that may be because kids that age don’t use them as much as their older peers, the researchers said. 

“Children who spend excessive time playing video games report feeling the need to play more and more and being unable to stop despite trying,” Jason Nagata, MD, lead author of the study and assistant professor of pediatrics at UCSF, said in a press release. “Intrusive thoughts about video game content could develop into obsessions or compulsions.”

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Personality traits associated with porn addiction

Cheap, anonymous and easy access via the internet has increased porn addiction in recent years. About 10 percent of adults–200,000 Americans–admit to having an addiction to sexual content on the internet, including 17 percent of women. A new The Primary Care Companion for CNS Disorders study has pinned down the personality traits that predispose a person to a higher risk of porn addiction

The study interpreted the survey responses of just over 650 Lebanese subjects of both sexes, asking questions that were designed to reach conclusions about their online sex habits and personality traits. Results showed that higher extroversion and agreeableness were significantly associated with more porn-addictive patterns. Alcohol consumption and higher agreeableness were significantly associated with more guilt regarding online porn use. And more agreeableness alone was significantly associated with less online sexual behavior. 

Higher education also made it more likely that someone would develop unhealthy porn habits. So did being male. 

The researchers wrote that, with further investigation, their results can aid in the implementation of various mitigation strategies and a better definition for pornography addiction.

TV watching and pain increase in seniors

The more time middle aged and older people spent glued to the tube, the more bodily pain they experienced, data from 4,099 participants of the Australian Diabetes, Obesity and Lifestyle Study (AusDiab) revealed.

As mean TV time increased over a 12-year period, so did aches and pains. People with type 2 diabetes fared worst of any group at the 3-, 6- , and 12-year mark. They watched more TV on average (2.2 hours a day versus 1.6 hours per day for people without diabetes) and, as a group, reported feeling more frequent and severe pain. 

Those who initially reported more severe pain had a higher rate of increase in pain severity. A one-hour increase in daily TV time was significantly associated with an increase in pain intensity. In subjects with type 2 diabetes, bodily pain severity was especially pronounced when their watch time crept up over 2.5 hours per day.

Why there is an association between TV time and pain is no mystery. Sedentary behavior has long been tied to an increase in musculoskeletal pain. Sitting for prolonged periods can also lead to poor posture and neck and back pain, and it can even worsen chronic pain symptoms.

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