Health News Update: Blocking Internet on Smartphones Improves Mental Health

Mark Smith • August 18, 2025

Hello everyone: I frequently hear about mental health issues with the people in our practice. They could be experiencing depression, or anxiety, feel flat, can’t focus or sustain attention, or may not feel well in general. These comments can come from anyone of any age…I can hear from parents about their kids, or it may be themselves experiencing these feeling. So, when I read this paper, it felt important to share it because we all seem to have mobile phones. Here is how the paper is summarized:

 

“Concern about how smartphones affect users is widespread: half of American smartphone users—and 80% of those under age 30—worry that they use their device too much, and correlational research suggests that smartphone use is negatively related to mental health and cognitive functioning. However, few large-scale experiments have tested for causal effects. We report such an experiment, finding that blocking mobile internet for 2 weeks reduces smartphone use and improves subjective well-being (SWB) (including life satisfaction and positive affect), mental health (more than antidepressants), and sustained attention (as much as being 10 years younger). Despite the many benefits mobile internet offers, reducing the constant connection to the digital world can have large positive effects.”

 

https://academic.oup.com/pnasnexus/article/4/2/pgaf017/8016017?utm_source=klaviyo&utm_medium=email&utm_campaign=%28Email%20-%20Chris%20Kresser%20General%20News%29%20Chris%27s%20Friday%20Favorites&utm_term=randomized%20controlled%20trial&utm_content=randomized%20controlled%20trial&_kx=fARhTo_gi8X3B_2-MaeO_RyzUl9tvT3tr4re-Dy7cNQ.my75y6

 

Bottom Line: It seems like a smartphone ‘timeout’ can be very beneficial for mental, emotional, physical health and can be an important part of stress reduction. The world today, with nearly instant communications, the almost constant bad and anxiety promoting news, and the fast pace of data consumption can add up to significantly stress us out and pull us down…or just simple keep us distracted. From what I can see, a ‘timeout’ may be just what the doctor ordered.

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Health News Update: Pesticides, Cancer & Why Go Organic 6.29.26 Hello everyone: Slowly but surely, despite the health and food industries downplaying the risks, evidence is emerging that the long-term consumption of trace amounts of toxic chemicals can add up to some serious health consequences. “Our process-based model, encompassing 31 key pesticide active ingredients, together with an innovative stratification of cancer cases by developmental lineage, reveals a robust spatial association between environmental pesticide exposure risk and cancer incidence. In pesticide-associated cancer hotspots, exposomic profiling of liver tissue—a primary target of chemical carcinogens—uncovers a distinct transcriptomic signature of pesticide exposure, implicating a non-genotoxic mode of action that disrupts core regulatory circuitries sustaining cell identity. Collectively, these findings strongly support a mechanistic link between pesticide exposure and cancer, challenging assumptions of human non-carcinogenicity derived from reductionist experimental models. This study redefines the exposome as a lineage-conditioned, mechanistically tractable framework and shows how complex pesticide mixtures can contribute to carcinogenic trajectories, with profound and far-reaching implications for global health policy and socio-ecological equity.” https://www.nature.com/articles/s44360-026-00087-0 pesticide exposure & cancer risks Bottom Line: Whenever possible, purchase your food from organic sources including local farmers that use regenerative and organic practices. Not all foods need to be organic, and to decide which ones absolutely need to be, you can access the Environmental Working Group’s yearly list of the Dirty Dozen foods that are the highest in pesticide residues. This will also include the Clean 15 foods that do not need to be organic as they are usually grown without or with very low pesticide levels. https://www.ewg.org/foodnews/dirty-dozen.php dirty dozen food guide Additionally, high quality nutrients support the natural detox processes our bodies use to get rid of any and all toxins. When we consume the Standard American Diet or Westernized Diet, we are low in the nutrients and co-factors needed to support optimal detox cleansing. So always start with food upgrades as they will carry your upgrade the farthest. Remember that most chronic health conditions start 20 years before you even notice them creeping up or becoming diagnosed. What you do now is creating your future. It used to be said that you are what you eat. Another way to say that is we become what we eat…so please take good care and make sure you always put high grade fuel into your Temple.
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