Frequent consumption of television content is associated with an increase in the volume of hyperintense white matter, which is detected on magnetic resonance imaging. This increase indicates processes of demyelination and axonal loss caused by impaired microcirculation. Furthermore, individuals who regularly watch television showed a decrease in the volume of certain cortical areas of the cerebral hemispheres.
It is important to note that a sedentary lifestyle accompanied by mental activity, such as working on a computer, did not cause similar negative changes. The results of this study were published in Alzheimer’s & Dementia.
There are many studies linking physical activity to maintaining brain structure in areas related to dementia. Conversely, accumulated data suggest that a sedentary lifestyle may increase the probability of developing dementia, but the impact of such a lifestyle on changes in brain structure remains insufficiently studied. Attention is also lacking regarding how a sedentary lifestyle can manifest in different behavioral scenarios, each having its own cognitive and physiological impact.
The research team, led by Nathan Fetter from the University of Southern California, studied the relationship between different forms of sedentary behavior and changes in brain structures in 1712 healthy individuals whose age ranged from middle-aged to elderly (the average age of the group was 53 years). Participants self-assessed their frequency of watching television and time spent sitting at work using the Beck Physical Activity Questionnaire. Time spent in front of the television was classified into five categories: 'Never', 'Rarely', 'Sometimes', 'Often', and 'Very often'. Sitting at work was determined by selecting one option for the statement 'At work you sit...': 'Do not work', 'Never', 'Rarely', 'Sometimes', 'Often', or 'Always.'
Upon final data collection, the average age of participants reached 76 years, and the average observation period was 23.7 years. Scientists established a context-dependent relationship between sedentary lifestyle and changes in several brain areas. Of particular interest was very frequent television viewing, which correlated with a decrease in the volume of specific areas.
The opposite pattern was observed in participants who reported always sitting while working, including computer work; they demonstrated a significant increase in volume. Additional analysis showed that watching television was associated with a decrease in volume in various areas of both hemispheres (p ≤ 0.047), whereas prolonged sitting at the workplace led to an increase in these areas (p ≤ 0.049).
When segmenting the data by sex, it was found that frequent television viewing increased the volume of hyperintense white matter in both sexes. Among men, a more pronounced decrease in the volume of the cortex and subcortex in areas responsible for emotional processing and cognitive functions was identified.
The researchers believe that separating the contexts of sedentary behavior in this study highlights the complexity of comprehensively assessing the influence of this parameter on the central nervous system. They concluded that active mental activity while sitting at work protects brain structures from damage, whereas passive mental stimulation, such as watching television, has a negative effect on them. The data obtained may serve as a foundation for developing dementia prevention programs for older adults.
For pilgrims arriving at the spiritual center of Kashi during the sacred month of Sawan, which begins on July 30th, a measure has been adopted: meat dishes will no longer be served at the Varanasi Kant railway station.
The senior station master issued the relevant orders, and this restriction will be in effect throughout the entire month of Sawan. The senior station master himself will oversee compliance with these rules. Additionally, arrangements have been made to maintain cleanliness, provide clean drinking water, ensure safety, and offer medical assistance.
Arpit Gupta, the senior station master of Varanasi Kant, stated that special attention will be paid to sanitation and hygiene due to the start of the sacred month of Sawan. With support from the district administration, ambulances and fire services will operate at the station. Assistance points have also been set up at the first two entry points. It is projected that the number of visitors will double compared to the daily 90 thousand pilgrims, and all preparations are being made with this forecast in mind.
A request was made to RPF and GRP to increase staff numbers. The station is equipped with 180 surveillance cameras to monitor the situation. The project to create a waiting area will soon be completed, and special trains will be launched if crowds increase. A quality check of food products was conducted, as well as disinfection, and an instruction was given that only vegetarian food will be served at the station.
Although vegetarian food was previously served at the station, it is now formalized. The food served will comply with FSSAI quality standards. This decision was made to ensure that the feelings of the pilgrims are not offended during the sacred month of Sawan.
Water is a vital element, and its purity requires special attention. The water tower in a house plays a key role in daily life, as we use it to wash dishes, vegetables, take showers, and perform other household chores. However, many people do not clean the tower for years. Over time, dirt, moss, rust, and bacteria accumulate inside the tank. Even water that looks clean can be dangerous to health and lead to serious illnesses.
To ensure that the water supplied to the house always remains clean and safe, it is crucial to periodically clean the tank. This not only protects the health of family members but also ensures the long and uninterrupted operation of pipelines and plumbing equipment. Often, the problem arises that people do not know exactly when such cleaning should be performed and leave the tank in this condition for a long time.
There are five clear signs that indicate the need for immediate deep cleaning of the tank:
Regular cleaning of the water tower guarantees the cleanliness and safety of the water. This prevents the development of bacteria and moss, reduces the risk of pipeline blockages, and also improves the performance of devices such as water purifiers, water heaters, and washing machines. Most importantly, it reduces the threat of diseases associated with consuming contaminated water.
It is recommended to clean the water tower installed on the roof of the house approximately every six months. Although light surface cleaning can be done between these periods, complete draining, internal, and external cleaning is necessary every half year. This allows for the removal of dust and dirt, as well as the elimination of insects.
The cleaning process includes the following stages:
A 35-year-old man suffering from moderate to severe plaque psoriasis sought treatment at a Turkish dermatology clinic. He had previously been in remission for eighteen months thanks to treatment with monoclonal antibodies against interleukin-23A, specifically risankizumab.
Two weeks before his visit, the patient decided to self-treat back pain using cupping therapy. Specialists applied clusters of superficial incisions to the skin so that the vacuum could draw out a small amount of blood—this ancient procedure is called hijama or wet cupping. Examination revealed clearly demarcated erythematous scaly papules and plaques on his shoulders, as well as on the middle and lower parts of his back.
Doctors Yusuf Demir and Zekai Kutlubay presented this case in The New England Journal of Medicine. After gathering the medical history and conducting examinations, the man was diagnosed with Koebner phenomenon, also known as isomorphic response.
This phenomenon is characterized by the appearance of rashes typical of various dermatoses, such as psoriasis, vitiligo, or lichen planus, in areas of the skin where such manifestations were not previously observed. This occurs after mechanical irritation of the skin, caused by scratches, burns, sutures, or abrasions. It is important to note that this phenomenon can occur even in people whose condition is well-controlled.
The patient stopped using cupping and resumed his previous dose of risankizumab. Three months after a follow-up examination, all his rashes disappeared.
The article also mentions the results of another study published in JAMA Neurology. It showed that prolonged exposure to traffic noise increases the likelihood of developing Parkinson's disease. The risk increased by three percent for every additional 11.5 decibels of noise; however, having a quiet facade not facing the road helped reduce this elevated risk.
