Health tour: new variant of covid;  your stove is a villain;  cancer in young people

Health tour: new variant of covid; your stove is a villain; cancer in young people

On Sundays, the Canaltech makes a selection of the main health issues that rocked this week. Today, we are going to talk about a new variant of the coronavirus; the discovery that the gas stove can pollute your home and cause illness; the worrying and growing number of cancer cases in young people; and more! Follow now, at Giro da Saúde!

Variant BA.4.6 can bypass the vaccine? (Image: Vladimirzotov/Envato Elements)

The WHO (World Health Organization) has barely announced that humanity can walk towards the end of the pandemic and a new variant, a descendant of the Ômicron, has already been identified in more than 70 countries. This is BA.4.6, which is apparently supposed to take the place of BA.4 and BA.5 — but, so far, it does not pose a risk to public health.

It is still too early to talk about symptoms and transmissibility of the new strain. What is known is that BA.4.6 is similar to BA.4, but a mutation in the Spike (S) protein of the viral membrane draws attention. “This R346T mutation has been observed in other variants and is associated with immune evasion, which means that it helps the virus to escape antibodies acquired by vaccination and previous infection,” explains Manal Mohammed, professor of medical microbiology at the University of Westminster, in UK.

Cooking gas pollutes the air in your home and causes health problems (Image: Magda Ehlers/Pexels)

A warning about the potential risks that the gas stove can bring to you and your family was made by researchers from the American Chemical Society. The appliance can release atmospheric pollutants during use and even when turned off! Cooking gas, during combustion, releases a toxic by-product called nitrogen dioxide. In addition, methane gas can be released even when the stove is not in use.

The amount of indoor pollution generated by the gas stove is affected by the structure of the residence, that is, those who live in larger houses, with exhaust fans and well ventilated, are generally less exposed to pollutants. Those who live in apartments or small houses may be more exposed to toxic gases. Experts point out that using alternatives such as the induction stove helps to improve air quality indoors.

Harms from processed meats can lead to inflammation and even cancer (Image: Eiliv-Sonas Aceron/Unsplash)

That processed food is far from healthy, we already know. But what two new studies bring to light is that the harms of ultra-processed meats are even greater than previously thought. This type of industrialized food usually brings emulsifiers, thickeners and artificial flavors, in manufacturing processes that simply destroy the natural structure of the ingredients and, consequently, remove many nutrients.

Some researchers theorize that ultra-processed foods are recognized by the body as foreign, generating an inflammatory response as a result. This process is also linked to an increased risk of colon cancer. In addition, the rampant consumption of these products can increase the risk of premature death from any cause.

Physical activity generates beneficial hormones for those with Parkinson’s (Image: Luis Vidal/Unsplash)

Practicing physical activity can help reduce the symptoms of Parkinson’s. According to a new study, which evaluated the effects of exercise on rodents, there is an interaction between physical activity and a molecule called irisin. In rodents, the researchers focused on a research model in which mouse brain cells were engineered to scatter tiny, thin fibers of alpha-synuclein, a protein that regulates mood and movements related to the release of dopamine — one of the main triggers of dopamine. Parkinson’s disease.

When alpha-synuclein proteins clump together, these clumps kill dopamine-producing brain cells. In the study, irisin was found to prevent the accumulation of alpha-synuclein clusters. In mice given injectable irisin, the exercise hormone reduced levels of alpha-synuclein related to Parkinson’s disease by between 50% and 80%.

Cancer cases in young people are on the rise, and dietary habits may be to blame (Image: Antoniohugophoto/Envato)

Worldwide, the number of cancer cases in young people (under the age of 50) has increased significantly, according to researchers at Harvard University. According to them, this has to do with changing eating habits. In addition, lifestyle changes and more cancer screening programs may have helped, as the latter implies more diagnoses.

“Among the 14 rising cancers we studied, eight were related to the digestive system. The food we eat feeds the microorganisms in our gut,” says Tomotaka Ugai, researcher and one of the study’s authors, in a statement. “Diet directly affects microbiome composition, and eventually these changes can influence disease risk and outcomes,” he suggests.

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