As per the World Health Organization, all but 1% of the world's population is exposed to unhealthy air and also exceeds the WHO limits for pollutants. However, there are some parts of the world where aur quality has improved through policies that limits pollution, while in other parts, it has not reached the desired results.

For US, more than 25% of the population is exposed to "unhealthy" air as per the Environmental Protection Agency (EPA), this is according to the report by the climate non-profit First Street Foundation. By 2050, the number of people exposed to "unhealthy" air will increase by more than half. The worst days of air pollution, reports BBC, "hazardous" or maroon under the EPA's system will rise by 27%.

Why are we talking about this today? It is because of the recent wildfire in California, which started on January 7. This is also one of the factors that is spiking the PM2.5 levels. It has increased by up to five micrograms per cubic metre in the western US in the past decade.

What is PM2.5?

It is a type of air pollution which is made of particulate matter and measures 2.5 micrometres across or less. It is roughly 30 times smaller than the width of a human hair. These particles are made with a mixture of solid and liquid substances, which varies in their chemical composition, including carbon, metals, and organic compounds.

These specks of airborne soot, dust and other substances can also trigger inflammation, which could also damage your brain.

As per a 2021 study titled The Changing risk and burden of wildfire in the United States, a quarter of US's PM2.5 pollution was caused by wildfire smoke. In 2023, US also witnessed a significant dip in air quality and visibility as smoke from wildfires north of the Canadian border entered across the continent. In May 2024, Canada also saw a start to its wildfire season, and one town was evacuated in British Colombia.

Wildfire smoke and its effects

Wildfires do not only affect those who live near forests, peatlands, and grasslands, but also to the cities and environment in general. It can send plumes up to 14 miles or 23km into the stratosphere, and from there, it can spread all over the globe. For instance, in 2023, the Siberian wildfires released smoke that travelled across the Pacific Oceans to reach Alaska and Seattle.

Other than PM2.5, wildfire smoke is also harmful to immune cells in lungs, and the toxicity could be four times greater than particulates from other types of pollution.

Another 2019 study titled Effects of Atmosphere Processing on the Oxidative Potential of Biomass Burning Organic Aerosols found the toxicity of smoke doubled in the hours after it was first emitted and reached four times greater toxicity at its peak.

Health Impact

There have been research that shows how pollution affects your brain. It can lead to impaired judgment, poorer performance in school and even higher levels of crime, as per the 2018 study by the London School of Economics.

Other health concerns include weight gain. There have been researches that links airborne pollution such as PM2.5 to obesity. The studies have found that children who live in most polluted areas are twice as more likely to have obesity. Some studies also find the link of air pollution harming our sense of smell. As per an Italian study from 2022, titled Association between environmental air pollution and olfactory functioning among Italian adolescents and young adults in Northern Italy, noses of teenagers and young adults became less sensitive to odors after being exposed to nitrogen dioxide, which is a component in traffic fumes.

At least 55 people have lost their lives and 279 remain missing after Hong Kong’s most severe fire in more than a century swept through several high-rise towers on Wednesday afternoon, officials said. Fire crews are still trying to put out the blaze in the Tai Po area and reach those who are trapped inside. By early Thursday, authorities said they had managed to control the fire in four buildings, though teams were still working on three others more than 16 hours after the flames first appeared.

What Happened in Hong Kong?

A residential complex in the Tai Po district caught fire at around 2:51pm local time on Wednesday. The flames started on the bamboo scaffolding fixed to the outside of one of the buildings. This scaffolding, made of bamboo poles used by workers during repairs, burns very easily. Once it caught fire, the flames moved quickly up the outside of the building, spread into the apartments, and then reached nearby towers.

The blocks were also covered in green construction netting from the ground to the roof because renovation work was taking place. This netting caught fire as well and helped the flames advance at a faster pace. Local reports noted that the fire grew at incredible speed. By 3:34pm, it had reached a level four alarm, and by 6:22pm, it had been raised to a level five alarm, the highest alert in Hong Kong. It is now the deadliest fire the city has seen in more than 100 years.

Hong Kong Fire: How Did The Fire Start?

The blaze spread in minutes because it began on the bamboo scaffolding around the building and moved to the green netting covering the towers. Both materials burn very easily. Once they ignited, the flames climbed the outside of the tower and reached many floors above. Burning fragments then dropped to the ground and set nearby buildings on fire within minutes. Wind and the open gaps created during the renovation work likely pushed the flames even faster. While officials are still examining the exact cause, they said that the flammable scaffolding, the construction materials, and the tall buildings standing close together all played a part in letting the fire grow out of control, according to Al Jazeera.

Hong Kong Fire: Essential Safety Tips To Keep In Mind During A Fire Emergency

As per The American Red Cross society, here are some essential safety tips you should follow during incase a fire emergency strucks.

Smoke Alarms:

• Make sure your home is fitted with working smoke alarms.
• Place an alarm on every level of your home including inside each bedroom and outside every sleeping area. Connect the alarms so that they all sound together.
• Install alarms and alert tools to help family members who are deaf or hard of hearing.
• Alert tools such as strobe lights flash when the alarm rings. Pillow or bed shakers can help wake someone who is sleeping. These devices are triggered by the sound of the smoke alarm and shake the bed to warn the person about the fire.
• Test each alarm at least once a month. Press the test button to check that it works.
• Visit the Consumer Product Safety Commission website for details on smoke alarms that may have been recalled.

Home Escape Plan

• Create a home escape plan that includes two ways out of every room. Share this plan with all family members and guests.
• The plan should show two clear exits from each room and a meeting point outside the home.
• Make sure everyone in the house knows the plan.
• Practice your fire drill regularly.
• Ensure that children, older adults, and people with disabilities have the help they need during an escape.
• Keep stairways well lit to prevent falls.
• Clear clutter so no one trips while trying to leave quickly.
• Add handrails along both sides of staircases.
• If you live in an apartment, know where all exit staircases are located on your floor in case the nearest one is blocked by smoke or flames. Always use the stairs to leave the building. Do not use the elevator unless the fire department says you can.

Fire Response

• If there is a fire, get out quickly and stay outside. Then call 9-1-1.
• If you cannot leave the building, call 9-1-1 and tell the fire department you are unable to get out. Wave a light coloured cloth or a flashlight near the window to signal for help, but keep the window closed.
• If you see smoke, use your second escape route. If you must move through smoke, stay low and crawl under it.

Sonali Bendre, actor, who is known for talking about her cancer journey, inspiring other survivors to talk about it too, has found herself at the center of a heated debate after she spoke how naturopathy and autophagy helped her in her cancer recovery.

Bendre, who was diagnosed with stage 4 metastatic endometrial cancer in 2018, wrote on X that she believes autophagy played a role in her healing journey. Her post quickly drew sharp criticism from several doctors.

Doctors Point Out That Cancer Remission Came Through Medical Treatment

Members of the medical community reminded her that her remission was the result of evidence-based cancer treatments, including chemotherapy, radiation and surgery. Many emphasized that autophagy is not a recognized medical therapy and should not be presented as one.

One post from hepatologist Dr Cyriac Abby Philips on X said, “Your cancer went into remission after chemotherapy, radiation, and surgery at an advanced cancer treatment hospital. Not because of Naturopathy. Not because of autophagy. Because you have the option and privilege to opt for the best treatments from scientific practice to help you.”

Bendre Clarifies Her Stand

Following the criticism, Bendre clarified that she was sharing her personal experience as a survivor, not medical advice. She wrote that her journey included elements she explored with the help of her naturopath, and these practices were only part of her overall healing process. In her words, “I have never claimed to be a doctor, but I am certainly not a quack either. I am a cancer survivor, someone who has lived through the fear, pain, uncertainty, and rebuilding that the disease brings.”

What Autophagy Actually Is

Autophagy is a natural process in which the body breaks down and recycles old or damaged cell components. Cells contain various structures that help them function, and over time some of these structures wear out. Autophagy acts like a clean-up and recycling system. It allows cells to dismantle faulty parts and reuse the useful components to maintain healthy cell function. Anything that cannot be used is removed by the cell.

This process is an important quality control mechanism. If too much cellular waste builds up, it can interfere with normal cell activity. Autophagy helps keep cells efficient and healthy. The scientific understanding of autophagy grew significantly after Japanese biologist Yoshinori Ohsumi won the Nobel Prize in Medicine in 2016 for his work uncovering how it works. While autophagy is essential for survival, it is not considered a medical treatment for diseases.

Can Autophagy Treat Cancer?

Experts explain that autophagy plays a complicated role in cancer. In the early stages, it may help prevent tumor formation by clearing damaged components. However, in established cancers, the same process can allow tumor cells to survive stress and become more resistant to treatments like chemotherapy.

Disclaimer: Please consult a qualified doctor or oncologist before choosing any treatment for cancer. Health and Me does not endorse alternative therapies as substitutes for evidence-based medical care. This article is based on publicly available information. All medical conditions should be evaluated and managed under the guidance of a licensed healthcare professional.

What if you are told that the vape you are using contains bacteria found in poop. You read that right. According to a study conducted by HAYPP along with Microbiologist Reynold Mpofu at BioLabTests, bacteria like staphylococcus and bacillus were found on vape, as well as fecal bacterium, E. coli is found on vape, which is often found in public bathroom.

What Did The Study Find?

More than 100 million people worldwide use e-cigarettes or vapes, and at least 1 in 6 people vape in toilet. Furthermore, vapes are rarely cleaned, and thus become germ hotspots.

The study found that vape mouthpieces are highly contaminated with bacteria. More than 1.5 million colony-forming unites or CFUs were identified on the vape mouthpiece, the maximum amount measurable by the lab, carrying as many as 2,300 times more bacteria than a public toilet, which has 50 CFUs per square inch.

“Laboratory analysis revealed that the mouthpiece is the dirtiest component of the vape. This isn’t surprising given that the human mouth, largely considered to be one of the ‘dirtiest’ parts of the body, harbors approximately 700 species of bacteria, that amounts to billions of individual bacteria,” said Mpofu.

The study was able to identify a range of bacteria, including skin microbes to gut bacteria like E.coli.

Also Read: UK Investigates Impact Of Vaping On Its Young Users

The Species Identified

The study identified these following bacteria on the vape:

• Bacillus: commonly found in dust and the air
• E.coli: indicates possible fecal contamination
• Yeast and mold: can cause respiratory irritation
• Staphylococcus: usually harmless, but could cause infection
• Enterococcus: intestinal bacteria that can persist on surfaces

The study was also able to identify bacteria on the vape body. The lab also observed a rapid microbial growth between just 2 to 3 days of use. These colonies could be seen multiplying thousand of times over.

While many of these are found on human skin or surrounding, some are intestinal bacteria, like aforementioned, E.coli, and Enterococcus, which points towards unwashed hands, explaining the transfer on the surface.

“Much like phones, vapes are frequently handled and placed on a variety of surfaces, allowing germs, oils, and dirt from hands, pockets and various environments to latch on the device. The findings confirmed the presence of bacteria, including E. coli and Enterococcus, on the vape body, likely arising from inadequate hand hygiene or the transfer of microorganisms from bathroom environments or other contaminated surfaces,” said Mpofu.

Read: Why Is My Idea Of Break Is To Have A Smoke?

The Timeline Of Bacteria Development

The first signs of microbes start to appear within the first day of buying a brand new vape, especially around the mouthpiece.

By day three, the vape accumulates more than 2,300 times the microbial load typically found on a toilet seat.

By the seventh day, bacteria like E.coli. and Enterococcus and other fecal indicators are detected on the mouthpiece and vape’s body. Mould and bacteria are also found on levels.

By day 14, despite no new use or cleaning, the vape remains heavily contamination. The contamination does not fade overtime.

Read: These US States Vape The Most