We offer in Al -Jazeera the health of health news and medical research on Wednesday, February 5, 2025:
Good fat is not always useful
We start our tour with good cholesterol, which turned out to be associated with the high risk of developing a state of optic nerve and may lead to irreversible visual loss or complete blindness that is known as glaucoma, among people over the age of 55.
The study challenged the prevailing belief about harmful cholesterol and showed that it was linked to a lower risk of glaucoma. While it is traditionally known for its bad effect, which leads to the accumulation of cholesterol in the walls of the arteries, which leads to its hardening and causes heart disease.
The study was conducted by scientists from the University of Sun Yat Sun, the main laboratory of the Guangdong region of ophthalmology and vision science, in China, and its results were published in the British Journal of Ophthalmology on February 4 and wrote about the website of Yurtish Alert.
The analysis of the results of the blood test showed that the highest levels of good cholesterol have a 10%high -density sebaceous lipoprotein.
“Plastic height in our brains”
In America, a team of researchers at the University of New Mexico expressed their concern about the high concentration of fine plastic molecules in human brains. They noticed that they were much higher than those in other organs of the body, and the researchers noted that they increased by 50% in just 8 years.
The researchers said, according to the American magazine Newsweek, that the results must be alarm and that the rate of accumulation of fine plastic molecules in our brains reflects the increasing amount of plastic waste throughout the Earth.
In their study, which was published in Nature Medicine on February 3 – the researchers – 12 different types of plastic inside the samples and the polyethylene, which was used to make bottles and the most common plastic cups.
Micro -plastic materials tend to gather in fat cells in the insulating cover that wrapped around the neurons in the brain and helps in regulating the transmission of signals, and the team said that this accumulation may explain the reason for the high concentrations of fine plastic materials in the brain compared to other organs.
The researchers have warned that the effect that microscopic plastic particles in the brain might have, but previous studies linked exposure to fine plastic particles in the body with health complications as the concentrations of accurate plastic particles in the placenta to the risk of premature birth.
Drying clothes with closed rooms may cause diseases
The British Adandant newspaper published an order that will not be pleased with the mothers, as the newspaper quoted experts a warning against spreading clothes inside the closed rooms in order to prevent the growth of mold.
Mold is formed in the form of black or green spots on the walls and has a sporting smell, and it flourishes in wet cold environments. The microbiology that this mushrooms release in the air can be transmitted, and prolonged exposure may lead to serious health problems, and perhaps death in some cases.
Fortunately, our immune system is very good in the discovery and killing of fungi germs, which limits the number of fungal lung infections in humans despite our exposure to them constantly, as there are immune cells called the supplies inside the air vesicles, and these cells eat anything harmful to inhale, including Wild germs.
There are several types of mold, the most common – which cause wet homes – are penicillos and asbergos. It is estimated that we inhale small numbers of the germs of these fungi daily.
But many people cannot deal with these fungal germs, and fungi can cause them a serious infection, and may cause a relapse for some of those with chronic diseases such as asthma. The appropriate ventilation is the key to alleviating mold growth and protecting family health when drying inside the house.
Increase people with non -smoking lung cancer
In continuation of the talk about unpleasant news, a new global study indicated that patients who have never smoked now a greater number of lung cancer cases compared to patients who have a history with smoking.
The study was conducted by researchers from the College of Public Health at the Guangdong Medical University in China and the Branch of the Cancer Control of the International Cancer Research Agency in France. The results of the study were published in the Lancet Journal of Respiratory Medicine on February 3, and the Daily Mail website was written about.
Scientists have found that the most common form of lung cancer now is adenocarcinoma, a type of lung cancer formed in the lining of the organs and is the most common in non -smokers.
And they estimated that about a third of the cases of glandular cancer that are diagnosed every year in the world, which number 600,000, could be attributed to air pollution.
They also indicated that, according to 2019 reports, 99% of the world’s population lives in areas that do not meet air quality in which the World Health Organization standards.
While men still represent most of the cases of lung cancer, the researchers noted that glandular cancer was more prevalent among women. Which may be due to the increased exposure to pollution caused by cooking in closed places.