Tag: brain

Does obesity cause permanent changes in the brain?

Certainly! Here’s a more detailed explanation:

Obesity, a complex condition influenced by various genetic, environmental, and behavioral factors, has been found to have implications beyond its physical effects on the body. It has increasingly drawn the attention of researchers in the field of neurobiology and cognitive science due to its potential impact on the brain.

Studies using brain imaging techniques, such as magnetic resonance imaging (MRI), have provided insights into the structural and functional changes that occur in the brains of individuals with obesity. These changes are believed to contribute to the development and persistence of obesity.

One area of the brain that is particularly involved in the regulation of appetite and reward is the hypothalamus. The hypothalamus plays a crucial role in regulating food intake and energy balance. In individuals with obesity, the hypothalamus may exhibit abnormalities in its function, leading to an impaired ability to regulate appetite and metabolism.

Moreover, the brain’s reward system, which usually responds to pleasurable stimuli like food, may become dysregulated in obesity. Research suggests that obese individuals may show decreased activation in the brain’s reward centers, such as the ventral striatum and the orbitofrontal cortex, in response to food-related cues. This blunted response can contribute to a diminished feeling of satisfaction after eating, potentially leading to overeating in an attempt to compensate for this reduced reward response.

Additionally, obesity-related changes have been observed in other brain regions beyond the hypothalamus and reward system. For example, the hippocampus, a region involved in memory and learning, may experience volume reductions in individuals with obesity. This could have implications for cognitive functions related to memory and information processing.

The prefrontal cortex, which plays a crucial role in decision-making, impulse control, and self-regulation, may also be affected by obesity. Some studies have shown that individuals with obesity may have decreased volume and impaired function in certain areas of the prefrontal cortex, potentially contributing to difficulties in regulating food intake and making healthy choices.

While these brain changes associated with obesity are significant, it is important to emphasize that they are not necessarily permanent. The brain is a highly adaptable organ, and through lifestyle modifications, such as adopting a healthy diet, increasing physical activity, and managing stress, some of these brain alterations may be reversible. Encouragingly, research has shown that weight loss achieved through interventions like diet and exercise can lead to improvements in brain structure and function.

In conclusion, obesity can indeed have an impact on the brain, with structural and functional changes occurring in areas involved in appetite regulation, reward processing, and cognitive control. However, the human brain has a remarkable ability to adapt and change, and by adopting a healthy lifestyle, individuals can positively influence their brain health and mitigate potential negative effects.

what are some signs of bleeding in the brain?

When taking clopidogrel and aspirin together, it’s important to be aware of the signs of bleeding in the brain. These signs may include:

  1. Sudden severe headache, often described as the worst headache of your life[1][3][4].
  2. Nausea and vomiting[2][5].
  3. Tingling, weakness, numbness, or paralysis of the face, arm, or leg, especially on one side of the body[2].
  4. Change in level of consciousness or alertness, such as feeling drowsy, sleepy, or in a coma[2].
  5. Trouble breathing and abnormal heart rate, if the bleed is located in the brainstem[2].
  6. Stiff neck[4].
  7. Sensitivity to light[4].
  8. Difficulty moving or walking[4].

It’s important to note that these symptoms can vary depending on the location and severity of the bleeding[4]. If you experience any of these symptoms, it is crucial to seek immediate medical attention as a brain bleed is a life-threatening condition that requires prompt treatment[5]. If you have any concerns or questions about the symptoms you are experiencing, it’s important to consult with your doctor or healthcare provider for further guidance and advice.

Citations:
[1] https://www.lvhn.org/news/basics-about-brain-bleeds
[2] https://my.clevelandclinic.org/health/diseases/14480-brain-bleed-hemorrhage-intracranial-hemorrhage
[3] https://www.webmd.com/brain/brain-hemorrhage-bleeding-causes-symptoms-treatments
[4] https://www.medicalnewstoday.com/articles/brain-bleed-symptoms
[5] https://www.nyp.org/neuro/brain-hemorrhage
[6] https://www.mayoclinic.org/diseases-conditions/intracranial-hematoma/symptoms-causes/syc-20356145

Fatty liver can also be harmful to the brain

Non-alcoholic fatty liver disease (NAFLD), a type of fatty liver disease that is complex in and of itself, affects a large proportion of the world’s population. However, it is now understood that this condition can have an impact on the brain.

Fatty liver affects brain
Photo by MART PRODUCTION on Pexels.com

According to experts at King’s College in London and the University of Lausanne in Switzerland, as fat deposits accumulate on the liver, oxygen supply to the brain can be compromised. It causes inflammation on the one hand, but it can also lead to other complex diseases such as brain degeneration.

This fatty liver condition is so common that it affects 25% of the world’s population, including Pakistan, and 80% of them are overweight or obese.

Researchers did tests on mice by giving one group 10% fat and the other group 55% fat (as calories), which was the same amount of fat, sugar, and fast food as the whole.

The experts performed several tests on the mice’s liver and brain after 16 weeks. Surprisingly, all of the high-fat fed mice developed NAFLD and insulin resistance (a diabetes-like condition), and several brain functions were affected. In mice fed a normal healthy diet, however, no such condition was observed.

Following that, researchers from the University of Lausanne discovered that mice with fatty livers had oxygen deprivation in their brains. This is due to the fact that obesity narrows the arteries in the brain and is linked to fatty liver. Mice with fatty livers appeared depressed and unhappy as well.

Research shows that writing by hand helps engage your brain more deeply than typing.

Handwriting is a unique cognitive experience that has distinct advantages over typing. According to research, writing by hand stimulates different parts of the brain, aiding in memory retention and helping with the formation of ideas. Writing by hand is also believed to help develop more creativity and deeper thinking. So, if you have a choice, it’s probably a good idea to ditch the keyboard and pick up a pen!

Read More at Munaeem’s Blog

A common habit that can keep the brain young despite aging

Want to keep the brain young with aging?

This was revealed in a medical study conducted in the United States.

The study, published in the journal American Geriatrics Society, found that internet use can help keep the brain healthy in middle-aged people.

According to research, normalizing internet use reduces the risk of being affected by dementia, a disease that causes mental decline.

The study looked at the lives of more than 18,000 people between the ages of 50 and 65 for eight years.

At the beginning of the study, all these people were protected from dementia and each person was asked whether they used the Internet for any purpose or not.

At the same time, it was also seen that how many hours of using the Internet daily is beneficial for mental health.

The results showed that internet use reduces the risk of dementia, but it is necessary to spend 2 hours or less in online activities throughout the day.

In comparison, internet use for 6 to 8 hours per day increases the risk of dementia, but the researchers stressed the need for more research to confirm this.

The study, conducted by New York University’s School of Public Health, did not clearly identify the link between internet use and mental health, but the researchers did give some possible reasons.

He said that online activities potentially help in keeping brain function stable, which reduces the risk of dementia and increased brain age.

It should be noted that with the increase in age, the ability of the brain to analyze naturally slows down and it may be difficult to remember things, but the healthy brain does not face such problems.

Exercise, adequate sleep, maintaining body weight at a healthy level, monitoring blood pressure and blood sugar levels, avoiding smoking and social interaction are considered important for preventing dementia.

Experts say that new activities on the Internet, such as making TikTok videos or others, provide potential protection from dementia.

Dementia: how high blood pressure damages the brain

If the pressure in the arteries is constantly raised, the vessels and the organs that supply them suffer. This is also true of the brain. Among other things, the risk of a stroke rises, as does the risk of arterial dementia. This is the second most common cause of massive mental decline in old age, after Alzheimer’s.

A British-Polish research team has now mapped for the first time which brain regions suffer particularly from high blood pressure. It also examined the effects this has on cognitive functions.

What do high blood pressure genes have to do with the brain?

The team examined MRI images of the brains of 30,000 participants in the UK Biobank study and compared this data with previously determined risk genes for high blood pressure. They identified changes in nine brain regions in the brains of people with corresponding risk genes, which could affect cognitive functions such as memory loss, thinking ability, and dementia. The team then verified the results using patients with high blood pressure in Italy.

Heredity analysis confirms cause and effect

Mendelian randomization is a method of using genetic information to understand how one thing affects another. If the gene variants that promote high blood pressure are also associated with corresponding brain changes, there is a high probability that it is the increased blood pressure that causes the changes. This process occurs independently of other factors.

Dysfunctions in the brain

Results suggest that high blood pressure in these areas can cause brain dysfunction, leading to memory problems, thought disorders, and dementia. It is important to treat high blood pressure, even if it doesn’t feel it, as the risk increases with age. Young adults, children, and adolescents are also increasingly affected.

“Demenz: Wie Bluthochdruck Das Gehirn Schädigt.” NetDoktor, 11 Apr. 2023, http://www.netdoktor.at/news/demenz-wie-bluthochdruck-das-gehirn-schaedigt.

Studying for half an hour every day is beneficial for the brain and life

While studying enhances your personality, it also expands your knowledge. It has now been discovered that reading novels, novellas, or short stories for 30 minutes every day has a favourable effect on the brain. Using it in your routine can also raise your age.

According to several studies, learning lessens sadness and enhances memory. Yet, Stanford University researchers have discovered that reading literature, fiction, and fiction enhances blood flow in the brain. Some participants in one experiment were assigned to read Jane Austen’s works. During this period, he received a brain scan, which revealed that blood flow throughout his brain had improved. This demonstrates that reading fiction has a positive influence on the entire mind.

Read more at Blogger Zone.

Intestinal bacteria affect brain health: Study

A new study has found that bacteria in the intestines play an important role in the health of our brain.

Researchers from Washington University School of Medicine in St. Louis, Missouri, us, have found that bacteria in the intestines affect the behavior of immune cells throughout the body. These affected cells also include brain cells, which can damage the brain tissue and cause neurological problems, such as Alzheimer’s.

The findings, published January 13 in the journal Science, showed advances in the possibility of using intestinal bacteria to prevent or treat neurological problems.

According to senior author David M. Holtzman, in the study, the mice were given antibiotics for a week and in their intestinal bacteria, a permanent change in their immune response was observed and it was observed to what extent neurological problems with age were related to a protein called tau.

Interestingly, making changes in these bacteria could be a way to affect the brain rather than inserting something directly into the brain, he said.

There is growing evidence that intestinal bacteria in Alzheimer’s patients may differ from those in healthy individuals. But it is not clear whether these differences are the cause of the disease or the cause of the disease and what effects the changes in bacteria can have during the disease

Discovery of an amazing mechanism of the human brain

An American study has made this interesting claim – 


Our eyes are constantly getting more and more details of the scenes that unfold and it is not an easy task for the brain to analyze them.

On the one hand there are constant changes in front of our eyes due to light and other elements, on the other hand there are constant changes in our vision due to the blink of an eye, the movement of the eyes and the body.

To get an idea of ​​this, place a phone in front of your eyes and record live video while walking and watching.

The result will give you an idea of ​​how our brain somehow copes with the experience of each of our eyes.

You can also see this in the video below in which the white circle indicates the movements of the eyes while the matte part indicates the internal functions of vision with each movement.

So the brain uses a unique mechanism for this which also explains the stability of our vision.

This mechanism has been revealed in a new study according to which our brain automatically stabilizes our eyesight and this is a shocking method.

In fact, everything we see is on average 15 seconds earlier, so the brain connects all the parts together so that we can feel that the vision is working in a stable environment.

‘Living in the past’ also means that for some reason most of us are not able to focus on the changes that are taking place in our environment over time.

Simply put, our brain works like a time mission that sends us back in time a few seconds earlier so that everyday activities don’t become a problem for us.

On the contrary, if the brain were to update everything in real time, the world would be a place of chaos for our eyes, with constant movement of light, shadow and motion, which would be unbearable for us.

Research from the University of California, Los Angeles, has found that when our brains have to do a lot of work on the surrounding landscape, they cling to the past because it hints at the present, thus recycling details. The faster it is, the better it gets and the less work it has to do.