The human brain uses a surprisingly large amount of energy daily, despite its relatively small size. Although it makes up only about **2% of the body’s weight**, the brain consumes roughly **20% of the body’s total energy expenditure** each day[2][6].…
Brain training apps can **improve certain aspects of memory**, but their effects are often limited to the specific tasks practiced within the app rather than producing broad, lasting cognitive improvements. Scientific research and expert opinions suggest that while these apps…
Music profoundly influences the brain by engaging multiple neural systems simultaneously, affecting emotions, cognition, motor functions, and even physical health. This influence occurs because music is not merely a sound stimulus but a complex, multidimensional experience that the brain processes…
Meditation induces a complex array of changes in brain activity, involving multiple regions and neural oscillations that together support emotional regulation, attention, and relaxation. When a person meditates, the brain shifts into distinct patterns of electrical activity that reflect altered…
People with Alzheimer’s disease often experience **changes in their dreams** due to the disease’s impact on brain function, particularly in areas involved in memory, cognition, and sleep regulation. These changes can manifest as altered dream content, frequency, vividness, and the…
People with dementia often experience **altered dreams**, including changes in dream content, frequency, and recall, largely due to the underlying brain changes and sleep disturbances associated with the condition. Dementia, especially types like Alzheimer’s disease and dementia with Lewy bodies…
## How Does the Brain Learn Languages? Learning a language is one of the most complex tasks the human brain can perform. It’s not just about memorizing words and grammar rules—it’s a whole-brain activity that involves listening, speaking, reading, writing,…
Mirror neurons are a special class of brain cells that activate both when an individual performs an action and when they observe someone else performing the same action. This unique property allows the brain to internally simulate or “mirror” the…
## How Fast Do Brain Signals Travel? Understanding how fast brain signals travel is a fascinating journey into the inner workings of the human nervous system. This article breaks down the science in a simple, easy-to-understand way, with clear explanations…
Untreated high blood sugar, as seen in diabetes or metabolic syndrome, can indeed cause **memory damage** and cognitive decline through several well-documented biological mechanisms. The brain, especially the hippocampus—a critical region for memory formation and storage—is highly sensitive to disruptions…