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News Topical, Digital Desk : We all know that exercise is extremely beneficial for our bodies, but did you know that it can also protect our brains from serious diseases like Alzheimer's? Researchers at the University of San Francisco have identified a new biological mechanism that explains why physical activity improves our thinking and memory. This research suggests that exercise not only keeps the body young, but also the mind.
How does the brain weaken with age?
Our brain is protected by a special layer called the blood-brain barrier. This is a complex network of blood vessels that normally prevents harmful substances from the blood from entering the brain.
However, as we age, this protective barrier weakens and leaks. This leakage allows harmful proteins from the bloodstream to easily enter brain tissue. These harmful proteins cause inflammation in the brain, which is directly linked to cognitive decline and diseases like Alzheimer's .
How does exercise repair the brain?
This is where exercise works wonders! According to research, physical activity strengthens this brain's built-in defense mechanism. When we exercise, our body stimulates the liver to secrete a specific enzyme. This enzyme destroys harmful proteins that damage the brain. Additionally, exercise sharpens the brain by repairing this protective layer, significantly slowing down the process of brain degeneration with aging.
A new hope for the future
To better understand this process, researchers also conducted studies on mice. They found that when the amount of this harmful protein was reduced in the body, inflammation in the mice's brains decreased and their memory significantly improved. This is a very important finding, as it could help in the future to find new and better treatments for Alzheimer's and other age-related brain problems.
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