Why highly intelligent people suffer from more mental and physical disorders
Your brain's heightened sensitivity can make you perceptive and creative. But it's a double-edged sword, researchers find.
People with high IQ are considered to have an advantage in many domains. They are predicted to have higher educational attainment, better jobs, and a higher income level. Yet, it turns out that a high IQ is also associated with various mental and immunological diseases like depression, bipolar disorder, anxiety, ADHD as well as allergies, asthma, and immune disorders. Why is that? A new paper published in the journal Intelligence reviews the literature and explores the mechanisms that possibly underlie this connection.
The study authors compared data taken from 3,715 members of the American Mensa Society (people who have scored in the top 2% of intelligent tests) to data from national surveys in order to examine the prevalence of several disorders in those with higher intelligence compared to the average population.
The results showed that highly intelligent people are 20% more likely to be diagnosed with autism spectrum disorder (ASD), 80% more likely to be diagnosed with ADHD, 83% more likely to be diagnosed with anxiety, and 182% more likely to develop at least one mood disorder.
When it comes to physiological diseases, people with high cognitive abilities are 213% more likely to have environmental allergies, 108% more likely to have asthma, and 84% more likely to have an autoimmune disease.
Credit: Journal of Intelligence / High intelligence: A risk factor for psychological and physiological overexcitabilities
The researchers turned to the field of psychoneuroimmunology (PNI) to look for some of the answers. PNI examines how the chronic stress accumulated as a response to environmental factors influences the communication between the brain and the immune system.
The researchers point out that highly intelligent people have tendencies for “intellectual overexcitabilites" and a hyper-reactivity of the central nervous system. On the one hand, this gives people with high IQ heightened awareness that helps their creative and artistic work. In fact, the field of cognitive ability recognizes one aspect of highly intelligent people to be “a broader and deeper capacity to comprehend their surroundings."
This hyper-reactivity, however, can also lead to deeper depressions and poor mental health. This turns out to be particularly true for poets, novelists and people with high verbal intelligence. Their intense emotional response to the environment increases tendencies for rumination and worry, both of which predict depression and anxiety disorders.
Heightened psychological responses can affect immunity, write the researchers. People with overexcitabilites may have strong reactions to seemingly harmless external stimuli like an annoying clothing tag or a sound. This reaction may turn into low level chronic stress and launch an inappropriate immune response.
When the body believes it is in danger (regardless of whether it is an objectively real one like a toxin or an imagined one like an annoying sound), it launches a cascade of physiological responses that include a myriad of hormones, neurotransmitters and signaling molecules. When these processes are chronically activated, they can alter the body and the brain, dysregulate immune function and lead to conditions like asthma, allergies and autoimmune diseases.
The scientific literature has confirmed the association between gifted children and an increased rate of allergies and asthma. One study shows that 44% of those with an IQ over 160 suffered from allergies compared to 20% of age-matched peers. Тhe exploratory study done by the authors of this latest paper further supports that connection.
Based on their findings and previous studies the researchers have termed this phenomenon the hyper brain / hyper body theory of integration, explaining that:
The overexcitabilities specific to those with high intelligence may put these individuals at risk for hypersensitivity to internal and/or external environmental events. The rumination and worry that accompanies this heightened awareness may contribute to a chronic pattern of fight, flight, or freeze responses which then launch a cascade of immunological events. [...] Ideally, immune regulation is an optimal balance of pro- and anti-inflammatory response. It should zero in on inflammation with force and then immediately return to a calm state. In those with the overexcitabilities previously discussed, including in those with ASD, this system appears to fail to achieve a balance and thus inflammatory signals create a state of chronic activation.
Credit: Journal of Intelligence / High intelligence: A risk factor for psychological and physiological overexcitabilities
The authors conclude that it is important to further study the relationship between high intelligence (particularly the top 2%) and illness, especially in order to demonstrate causation and further bring to light the negative aspects of having a high IQ. As they say, “this gift can either be a catalyst for empowerment and self-actualization or it can be a predictor of dysregulation and debilitation" and in order to serve this group, it is important “to acknowledge the rumbles of thunder that follow in the wake of their brilliance."
Researchers documented the most common negative side effects of smoking weed, and who might be most susceptible.
- A team of researchers identified a total of 26 possible adverse reactions to cannabis use.
- Coughing fits, anxiety, and paranoia are among the top three most common adverse reactions to smoking weed.
- It was the people who smoke on a less frequent basis who were more likely to have had the bad experiences.
The most common adverse effects of pot<p>As it turns out, coughing fits are among the top three most common adverse reactions to cannabis use, along with anxiety and paranoia, according to a new study published in the <em>Journal</em><a href="https://jcannabisresearch.biomedcentral.com/articles/10.1186/s42238-019-0013-x" target="_blank"><em> of Cannabis Research</em></a>. </p><p>Now that weed is legal in the state, a team of researchers at Washington State University sought to document potential negative reactions to cannabis in order to paint a detailed picture of the effects of smoking weed for newbies. The authors surveyed more than 1,500 college students on the specific type and frequency of adverse reactions they had experienced while using pot. Additionally, the students in the study were surveyed about their demographics, personality traits, reasons for using cannabis and their use patterns. </p><p>Despite marijuana's <a href="https://bigthink.com/sex-relationships/marijuana-sex" target="_self">numerous benefits</a>, the team identified a total of <a href="https://jcannabisresearch.biomedcentral.com/articles/10.1186/s42238-019-0013-x/tables/2" target="_blank">26 possible adverse reactions to</a> the drug. More than half of the study participants reported having coughing fits along with anxiety and/or paranoia while using cannabis. The most frequently occuring of these were the coughing fits, along with chest/lung discomfort and body humming. A subset of the study group reported these reactions occurring around 30–40% of the time they were using pot. On the flip side, the three <em>least</em>-commonly reported reactions to cannabis use were fainting, visual hallucinations and cold sweats. </p><p>"There's been surprisingly little research on the prevalence or frequency of various adverse reactions to cannabis and almost no research trying to predict who is more likely to experience these types of adverse reactions," <a href="https://news.wsu.edu/2020/03/30/new-research-sheds-light-potentially-negative-effects-cannabis/" target="_blank">said Carrie Cuttler</a>, assistant professor of psychology and an author on the paper, according to WSU News. "With the legalization of cannabis in Washington and 10 other states, we thought it would be important to document some of this information so that more novice users would have a better sense of what types of adverse reactions they may experience if they use cannabis."</p><p>The most distressing of the 26 negative reactions were panic attacks, fainting, and vomiting. Yet, the survey data suggested that cannabis users generally do not find even acute adverse reactions to cannabis to be severely distressing.</p>
What causes a bad reaction?<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMjkwOTEwOC9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYyNTQ5MDQ2Mn0.S2Pkbh3VAgB4Gk5tkavamMv0_4t76dg65yGWpCHG17U/img.jpg?width=1245&coordinates=0%2C1872%2C0%2C1252&height=700" id="dee45" class="rm-shortcode" data-rm-shortcode-id="df6e30ecae156ba0012f4773a374800c" data-rm-shortcode-name="rebelmouse-image" />
But most city dwellers weren't seeing the science — they were seeing something out of Blade Runner.
On Sept. 9, many West Coast residents looked out their windows and witnessed a post-apocalyptic landscape: silhouetted cars, buildings and people bathed in an overpowering orange light that looked like a jacked-up sunset.
India finishes last of 60 countries in environment and sustainability, as ranked by the expats who work there.
- How 'green' is life in your work country?
- That's the question InterNations asked its network of expats.
- The United States ended 30th out of 60 countries.
Nordics on top<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2NjgyNy9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0NTczNzkyOX0.VgfqyjAa9avw6gFOE0qlgSgKuBN7DJmzOc5lzFGLm8g/img.jpg?width=980" id="1f0dc" class="rm-shortcode" data-rm-shortcode-id="b27458cf472d26cf1f87cb91623a0621" data-rm-shortcode-name="rebelmouse-image" alt="Evo Hiking Area, H\u00e4meenlinna, Finland." />
Evo Hiking Area in Hämeenlinna, Finland. Great nature, clean air, clean water? Check, check and check.
Credit: Kanta-Hämeen kuvapankki on Flickr/ Public Domain.<p><br><strong>1. Finland</strong></p><p>The Nordic country scores at or near the top in all categories surveyed, including the quality of the natural environment (say 96 percent of expats in Finland), water and sanitation (96 percent) and air (95 percent). <br></p><p><strong>2. Sweden</strong></p><p>Swedes lead the world in environmental awareness (84 percent versus just 48 percent globally). Perhaps not surprising, for the homeland of <a href="https://bigthink.com/politics-current-affairs/greta-effect" target="_blank">Greta Thunberg</a>. This is reflected by government policy. Sweden currently gets more than 50 percent of its power from renewable sources and wants to go 100% renewable before 2040. "I've been here for over 20 years and I clearly see the benefits of my taxes paid coming back to me and the rest of society," says one American expat.<br></p><p><strong>3. Norway</strong></p><p>"The beautiful nature, the clean air and tap water, and the focus on the environment," are what one Ukrainian expat enjoys most about Norway. With 76 percent of expats happy with the availability of green goods and services, Norway's 'weakest' category is still 13 percentage points above the global average. <br></p><p><strong>4. Austria</strong></p><p>The first non-Nordic in the global ranking, Austria places in the Top 10 for each category and comes in first for the availability of green goods and services (90 percent). <br></p><p><strong>5. Switzerland</strong></p><p>Swiss nature is the most appreciated in the world (98 percent versus 83 percent on average). Switzerland also gets stellar results for air and water quality and the availability of green energy and green goods and services. </p><p><strong>6. Denmark</strong></p><p>Danes are very much into green causes, as is their government, say 83 percent resp. 84 percent of expats. "Organic food is readily available, and they are good with recycling," observes a South African expat. And they love cycling: 9 out of 10 Danes own a bike.</p><p><strong>7. New Zealand</strong></p><p>85 percent of expats agree that the New Zealand government takes green issues seriously. In fact, New Zealand plans to use 90 percent electricity from renewables by 2025. The country also scores high on the quality of its natural environment and all other categories – albeit slightly less on the quality of its water and sanitation.</p><p><strong>8. Germany</strong></p><p>"I enjoy the rising awareness about environmental issues and the alternatives the government and society are developing," says one Colombian expat. Indeed, 80 percent of expats agree the German government is pro-environment (versus 55 percent globally). <br></p><p><strong>9. Canada</strong></p><p>The only North American destination in the Top 10, thanks especially to expat appreciation of Canada's natural environment (96 percent), but also the quality of its water and sanitation (90 percet) and the availability of green goods and services (80 percent). <br></p><p><strong>10. Luxembourg</strong></p><p>"Access to nature for hiking and bicycling" is a definite boon for one American expat. In fact, the country's natural environment, although ranking 13th out of 60, is its lowest-rated subcategory. Luxembourg does even better when it comes to green energy, waste management, and the quality of its air and water.</p>
Taiwan, most sustainable destination in Asia<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2Njg1Ni9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY1NzkxMDAxNH0.Roy7h_Od1cmaqBmamk-DP4rKMpLjTM-qIajG96alZAg/img.jpg?width=980" id="00799" class="rm-shortcode" data-rm-shortcode-id="dab52370e1edb5da5ebb0f5631027b1c" data-rm-shortcode-name="rebelmouse-image" alt="\u200bEternal Spring Shrine in the Taroko Gorge, Hualien County, Taiwan." />
Eternal Spring Shrine in the Taroko Gorge, Hualien County. Outside of Taipei, Taiwan can be surprisingly green and beautiful.
Credit: Zairon, CC BY-SA 4.0<p><strong>11. Taiwan</strong></p><p>The highest-scoring expat destination in Asia, Taiwan boasts 92 percent approval of its waste management and recycling, and 80 percent of the availability of green goods and services. But "the air pollution (in Taipei) is getting worse because it is too crowded," one expat complains.</p><p><strong>12. Netherlands</strong></p><p>Green goods and services are widely available, agree 82 percen of expats, as is green energy. However, 13 percent rate the Dutch environment negatively, 4 percet above the global average. <br></p><p><strong>13. Portugal</strong></p><p>Well ahead of its neighbor Spain (#20), the country scores high for air quality (91 percent) and natural environment (95 percent). "I like the opportunity for gardening and growing our own food," says one expat. <br></p><p><strong>14. Estonia</strong></p><p><strong></strong>Estonia scores in the Top 20 for every category and gets its highest marks for its natural environment. "A beautiful country with excellent air quality and open spaces," praises an Indian expat.<br></p><p><strong>15. Costa Rica</strong></p><p><strong></strong>Both the government and the people are very supportive of green policies, find 82 percent, resp. 67 percent of expats. "It's easy to live a healthy lifestyle with regard to the food, climate, clean air and water," says one. Costa Rica won the 2019 UN Champion of the Earth award and has pledged to go carbon neutral by 2050.<br></p><p><strong>16. Czechia</strong></p><p><strong></strong>"The beauty of the environment" is one of the best things about living in Czechia, says a Russian expat. No less than 97 percent of expats agree.<br></p><p><strong>17. France</strong></p><p><strong></strong>77 percent of expats are happy about the availability of green goods and services in France, which is 14 percentage points above average. The country also scores well for waste management and recycling. In short, France has a "good, green and clean environment," one Iranian expat finds. <strong><br></strong></p><p><strong>18. Australia</strong></p><p><strong></strong>While ranking high on the quality of its nature, water and air, Australia scores low when it comes to government support for green issues (51 percent). Fortunately, expats see more interest among the general population (68 percent). </p><p><strong>19. Singapore</strong></p><p><strong></strong>Expats rate the government's interest in green issues higher than globally average (77 percent versus 55 percent), but the Singaporean public's engagement for the same less than average (40 percent versus 48 percent). Of course, in a small, crowded place like Singapore, "(nature) spots are limited."<br></p><p><strong>20. Spain</strong></p><p>Spain's "scenery, diversity of places to visit and healthier environment" are what rate highly with one British expat. Its weak point is governmental and public support for green issues – but still slightly above the global average. <br></p>
London is "polluted and noisy"<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2Njg4Ni9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0NDg3NjkyOH0.3ySSD7jFBfAWA07u-EN-oL9x9cq9FZn06iz5aV0hEOw/img.jpg?width=980" id="f5630" class="rm-shortcode" data-rm-shortcode-id="80c9fa119e7ff3acc91e027b7529bfed" data-rm-shortcode-name="rebelmouse-image" alt="\u200bEven at 2:30pm, London gets clogged." />
Afternoon traffic jam in London.
World map for the 'sustainable expat'<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2Njg5MC9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTYzMzAyNjQ2MH0.hjRiMDmOSnn9EvKJtx_tlzql3Gf7ph8lt8bL6dPCft4/img.png?width=980" id="def5d" class="rm-shortcode" data-rm-shortcode-id="149be2f5a19cc625cb555d8078f62ce2" data-rm-shortcode-name="rebelmouse-image" alt="The best & worst destiations for the sustainable expat" />
Sixty expat destinations ranked for sustainability, from best (orange) to worst (light blue). In between: fairly okay (brown), middling (grey) and not that great (dark blue).
South Korea's "rather horrible" air<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2NjkxNS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY2MTY1MjIwNn0.2e6eBIc38sAZLFQGKw4UL3-SY3hA9NthX0Uj9L4ibZA/img.jpg?width=980" id="c10db" class="rm-shortcode" data-rm-shortcode-id="cba918e6e5455c2e5ff4f9d5caf54775" data-rm-shortcode-name="rebelmouse-image" alt="\u200bSmoggy Seoul" />
Seoul's air quality is so bad you can picture it. Only India's air is perceived as worse than South Korea's, according to the expat survey.
Bad, worse, India<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDU2Njk0MS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0NTcyMTczMH0.Pt2bGDrpSKSwVjimMK_iK0Jejpu8ILn77VEzHTdzQQ4/img.jpg?width=980" id="28411" class="rm-shortcode" data-rm-shortcode-id="8b8b602261a168a46b05c53e09ab1b02" data-rm-shortcode-name="rebelmouse-image" alt="man standing surrounded by garbage" />
India scores worst in all three categories, but to be fair – some of its problems were imported from more developed countries.