Mysterious Fog in the US , Canada and UK: A dense, eerie fog with a "burning chemical-like smell" has spooked a good part of North America and parts of the United Kingdom and Canada. With social media amplifying all concerns, this phenomenon has sparked attention across all social media platforms. However, at the heart of this mysterious fog are a conjunction of natural events, social psychology, and environmental conditions that culminated in all the conspiracy theories and public health fears. Here's a closer look at the mysterious fog, its potential causes, and the societal response it has triggered.

Fog that Feeds Fear

The first reports of this "mysterious fog" came in from Florida where a resident said that they experienced respiratory symptoms, feverish warmth, and stomach cramps after contact with the fog. Similar stories started flooding social media, and within a day or two, a sinister force seemed to sweep across the United States, Canada, and parts of the UK. From Texas to Minnesota, people reported weird odors and health issues that they thought were linked to this bizarre atmospheric event.

Some witnesses were said to see "white particles" swirling through the air; theories ranged from a chemical attack or experimental weapon to drone-related chemical dispersals and references to historical military experiments, such as the infamous 1950s "Operation Sea-Spray."

Fuel to the fire were added when videos and posts, hundreds of thousands in number, began circulating on social media sites like TikTok and X (formerly Twitter) speculating on the origin of the fog. Hashtags like #ToxicFog went trending for days. Hysteria created a self-reinforcing loop in which every post spurred further scrutiny and fear.

Scientific Explanation of the Dense Mysterious Fog

1. What is Fog?

Fog is essentially a low-lying cloud formed when the air temperature cools to its dew point, causing water vapor to condense into tiny droplets or ice crystals. Several types of fog—advection fog, radiation fog, and valley fog—can form depending on conditions such as warm, moist air moving over cooler land or when temperatures plummet rapidly under clear skies.

2. Why the Chemical Smell?

Such chemical-like smell as reported during the occurrence of fog events is sometimes attributed to air pollution. It acts like a sponge, where it absorbs these pollutants, which include sulfur dioxide and nitrogen oxides, among others, that emit from industries. This mixture, therefore, leads to a stench that could be mistaken as unnatural or even toxic.

Also Read: Health Concerns Rise As US, Canada, and UK Come Under The Blanket Of Thick, Dense, Toxic Fog

3. What are the Health Concerns?

High moisture levels from fog can significantly exacerbate symptoms related to respiration, but especially in already predisposed asthmatics and allergy patients. The connection of these symptoms with actual fever, stomach cramps, and puffy eyes is too remote. Experts assume that the irritating effects of entrapped pollutants trapped in fog tend to affect more the eyes and throat rather than the rest of the body affected by some report.

Psychological Effects of Mass Panic Caused by Social Media

Social media amplified a natural weather event into a health epidemic. It made the personal experience of individuals become a cause for fear and speculation, a domino effect.

According to psychologists, this is a concept of selective perception, wherein once people's attention is drawn to environmental anomalies, they begin to notice them. This mirrors earlier panics, such as the Seattle windshield pitting panic of 1954. Then, atomic bomb testing caused fear in many and started to have people looking at their windshields for small marks that they had not seen before. Likewise, postings on the strangeness of the fog probably increased public awareness and suspicion, with people looking to attach unrelated symptoms to the phenomenon.

The fog hysteria shares a commonality with other instances of mass panic, such as the "drone sightings" of recent years or the Cold War-era fears of biological warfare.

Also Read: Mysterious Fog Is Making Americans Sick

These events underscore how fear can cloud judgment, especially when amplified by social media and sensationalist headlines. While historical cases, such as "Operation Sea-Spray," offer concrete evidence of the existence of unethical experiments, the jump from a natural weather condition to theories of chemical attacks exemplifies a more modern trend of connecting unrelated dots, all wonderfully seeded in distrust and anxiety.

Despite the swirling rumors, meteorologists and scientists are in agreement that the mysterious fog is not as alarming as it seems. It is well known that fog traps and amplifies pollutants, especially in urban and industrial regions. Moreover, winter months are the most conducive for fog formation, so its recent prevalence is unsurprising.

On the other hand, environmentalists advise that the fog should wake everyone up to increased levels of pollution. The reported odors and health irritations could be just symptoms of far deeper systemic issues like industrial emissions and lack of control over air quality.

The authorities must be transparent in their communication to combat misinformation and allay public fears. Governments and environmental agencies must provide timely updates on weather phenomena, air quality, and health risks. Initiatives like real-time pollutant tracking and public education campaigns can help demystify natural occurrences while addressing valid environmental concerns.

The mysterious Canada fog is a compelling case study in how environmental events intersect with psychology and societal dynamics. While rooted in natural phenomena, the fog became a vessel for collective fears, amplified by modern technology and historical anxieties.

In this information era where communication occurs at an almost lightning pace, the fog becomes a metaphor that reminds everyone about scientific literacy, environmental responsibility, and an effective balance when considering public concern. Whether perceived as a marvel of nature or as a tale that serves to teach, it left a very powerful mark in people's minds.

A recent AI analysis of more than 400,000 Reddit posts about popular GLP-1 drugs like Ozempic, Wegovy, Mounjaro and Zepbound revealed several side effects that researchers may not have fully recorded in clinical trials.

The study, published in Nature Health, analysed 410,198 Reddit posts from May 2019 through June 2025. Researchers identified 67,008 people who self-reported using semaglutide or tirzepatide, with 43.5% reporting at least one side effect.

The findings do not prove that the drugs caused the symptoms. Instead, they did identify patterns in patients' own accounts that may need further investigation.

What Side Effects Did The AI Find?

As expected, the analysis found gastrointestinal symptoms in majority. Among GLP-1 users who reported side effects, the most common were:

• Nausea: 36.9%
• Fatigue: 16.7%
• Vomiting: 16.3%
• Constipation: 15.3%
• Diarrhoea: 12.6%

Researchers also found abdominal pain, reduced appetite, acid reflux, bloating, headache and dizziness among commonly reported symptoms.

But two groups of symptoms stood out as they may be less represented in existing clinical-trial data and drug information. They are reproductive symptoms and complaints associated with temperature.

Nearly 4% of people who reported side effects described reproductive symptoms, including irregular menstrual cycles, bleeding between periods and heavy bleeding.

GLP-1 drug users also described chills, feeling unusually cold, hot flashes and fever-like sensations.

Also read: GLP-1 Drugs Mounjaro, Zepbound Show Promise For 1 Billion With Sleep Apnea

Effects Of Ozempic Or Mounjaro On Menstrual Cycles

The study was based on self-reported social-media posts, so researchers cannot establish whether semaglutide or tirzepatide directly caused menstrual changes, chills or hot flashes.

Other factors may also influence these symptoms. People taking GLP-1 drugs may experience substantial weight loss, changes in food intake, metabolic changes or other health changes that could effect these symptoms.

The researchers therefore describe these findings as safety signals, rather than confirmed adverse effects.

Also read: Are GLP-1 Drugs Actually Changing Asthma Biology, Or Are People Simply Having Fewer Attack Due To Weight Loss?

Reliability Of Reddit Analysis

Clinical trials help in determining whether a medication is effective. They also help in identifying its potential side-effects. But once millions of people begin using a drug, patients may describe symptoms in everyday settings that were uncommon or not specifically investigated during trials.

Reddit provides researchers with a huge data collection of real-world experiences. AI can quickly scan hundreds of thousands of posts for recurring symptom patterns that would be extremely difficult to identify manually.

However, Reddit users are not representative of all people taking GLP-1 drugs. The researchers noted that the population studied was younger, more likely to be male and disproportionately based in the US.

The study does not provide evidence that people should stop Ozempic, Mounjaro or other GLP-1 medications. Instead, it shows how AI-assisted analysis of patient experiences could help in addition to traditional drug-safety trials and monitoring.

Common symptoms of GLP-1 medications remain nausea, vomiting, diarrhoea and constipation as they are backed by extensive research and clinical trials.

The newly highlighted symptoms, particularly menstrual and temperature-related changes, need clinical research to determine whether they are genuinely caused by the drugs.

Globally renowned beauty and haircare brand L’Oréal is in the midst of a new legal battle in the US over allegations that it did not warn consumers possible potential cancer risks linked with its chemical hair-relaxer products.

Arizona Attorney General Kris Mayes filed a consumer fraud lawsuit against L’Oréal USA, its parent company and SoftSheen, accusing the companies of selling chemical hair relaxers without disclosing alleged links to ovarian and uterine cancers. Arizona is the first US state to bring such a lawsuit against L’Oréal over the products.

The lawsuit alleges that the products were primarily marketed to African American women and, in some cases, children.

The state is seeking damages and penalties, including warnings if the brand wants to keep selling the products.

What Is The Concern With Hair Relaxers?

Chemical hair relaxers are highly alkaline products designed to permanently straighten textured hair. They work by breaking and reforming the disulfide bonds in keratin, which gives hair its natural shape.

According to the Arizona lawsuit, some chemical relaxer products contain substances including phthalates, parabens, and other chemicals classified as probable carcinogens.

The complaint states that repeated use can increase exposure as these products are applied directly onto the scalp.

However, the presence of a potentially hazardous chemical does not establish that using a particular product will cause cancer. Cancer risk depends on factors including the substance, dose, duration, and route of exposure.

Also read: Prostate Cancer: What's Fact, What's Fiction

Earlier Study Flags Same Concerns

The legal action follows years of scientific research that examined links between chemical hair relaxers and cancers related to hormones.

A 2022 study from the US National Institutes of Health found that women who reported frequent use of chemical hair-straightening products had more than twice the risk of developing uterine cancer compared with women who did not use them frequently.

The researchers, however, found an association, not proof that hair relaxers directly caused these cancers.

Other research has also investigated possible links with ovarian and breast cancers, adding to concerns about repeated exposure to chemicals may cause serious health conditions.

Also read: Beyond Vaccines And Nutrition: Why Childhood Cancer Needs A Wider Conversation

What Does L’Oréal Say?

According to Reuters, L’Oréal has rejected the allegations. A spokesperson for L’Oréal USA said that the company is confident in the safety of its products and considers that the claims lack legal and scientific merit.

The company said, “L’Oréal’s highest priority is the health and well-being of all our consumers. Our products are subject to a rigorous scientific evaluation of their safety by experts who also ensure that we strictly follow all regulations in every market in which we operate. We are confident in the safety of SoftSheen-Carson’s products and believe the allegations made in this lawsuit have neither legal nor scientific merit.”

L’Oréal also disputes the research underlying the litigation, saying the study cited by plaintiffs did not establish a causal connection between hair-relaxer use and the alleged health conditions and called for further research.

The Arizona lawsuit comes amid more than 12,000 similar lawsuits consolidated in a federal multidistrict litigation in Chicago involving L’Oréal, Revlon and other manufacturers. Trials in that litigation may start in 2027.

The current evidence does not mean that everyone who has used a chemical hair relaxer will develop cancer.

But repeated use is an area of ongoing scientific investigation. People who use these products can reduce unnecessary exposure by following product instructions carefully, avoiding application to irritated or damaged skin, and considering less frequent use or non-chemical alternatives.

The Democratic Republic of the Congo (DRC) says its worst-ever Ebola outbreak has passed its peak and is now under control. But the assessment comes as the virus continues to spread geographically, with the outbreak crossing 7,000 cases and 3,398 deaths and reaching a seventh province.

The outbreak, caused by the Bundibugyo virus, was declared in May in northeastern Ituri province. As of September 10, DRC authorities had recorded 7,022 cases and 3,398 deaths, giving the outbreak a case-fatality rate of about 48%. Around 837 people remained in isolation or treatment.

DRC Says Ebola Has Passed Its Peak

DRC government spokesperson Patrick Muyaya said the government believes transmission has already peaked. The DRC government says the decline in cases attributes to a number of developments.

They say that 10 health zones affected before the latest expansion of the outbreak reported no new cases for at least 21 days. According to Xinhua news agency, transmission has slowed in several regions in the eastern province of Ituri, the epicenter of the outbreak.

Despite the slowdown, authorities called for strict monitoring and contact tracing, saying close surveillance remains necessary in regions where recent flare-ups have been reported.

“The 17th Ebola outbreak is under control, and the peak was reached at the beginning of the third week of August 2026,” Muyaya said while presenting the findings of a cabinet meeting and citing Health Minister Roger Kamba.

The government’s assessment comes despite the detection of Ebola in South-Ubangi, a northwestern province that had not previously been affected during this outbreak. The first reported patient there was a 23-year-old man who later died.

He had traveled extensively before coming in Sud-Ubangi. He had travelled across several provinces neighboring Rwanda and Uganda, as well as both road and river routes.

Also read: Ebola Cases Cross 6,000, Death Toll Nears 3,000 In Congo; Mortality Rate Remains Close To 50%

WHO Warns The Outbreak Is Still Uncontrolled

The World Health Organization does not seem to agree with DRC’s claims. In its latest assessment, WHO said the outbreak “remains uncontrolled and increasingly heterogeneous,” with transmission declining in some areas while continuing to intensify or spread in others.

WHO's latest data, covering September 7, recorded 6,757 confirmed cases and 3,267 deaths in DRC.

The agency said transmission remained variable, with continued geographic expansion and sustained increases in some health zones.

It is important to understand that a fall in cases in some hotspots does not necessarily mean the outbreak is over if new transmission chains are appearing elsewhere.

Also read: Ebola Outbreak In DR Congo Surpasses 3,000 Deaths: WHO & UN Say Outbreak Is Outpacing Response

DRC’s Deadliest Ebola Outbreak

The current epidemic is DRC's 17th Ebola outbreak and it has spread through remote and conflict-affected areas where healthcare infrastructure is limited. The WHO has also warned about shortages of trained healthcare workers, response partners, and funding.

Nearly 1,400 isolation and treatment beds have been established across affected areas, but the response still needs thousands more healthcare workers and additional resources.

Other challenges include unregulated and unsafe burials, population displacement, and delayed diagnosis. WHO has warned that late detection increases the risk of transmission within households, communities, and healthcare facilities.

Unlike the Zaire species responsible for previous major Ebola outbreaks, the Bundibugyo strain currently driving the DRC epidemic has no approved vaccine or specific treatment. Experimental vaccines and treatments are being evaluated. Vaccine for Zaire virus is also being tested to examine its efficacy on Bundibugyo Ebolavirus.

Ebola spreads primarily through direct contact with the blood or other bodily fluids of an infected person or someone who has died from the disease. Symptoms can include fever, severe weakness, muscle pain, vomiting, diarrhoea and, in some cases, bleeding.