The human brian is made up of more than 100 billion nerve cells called neurons. Each neuron is connected to as many as 25000 other neurons-so the brain has trillions and trillions of different pathways for nerve signals. Girls' brains weight 2.5% of their body weight, on average, while boy's brains weigh 2%. About 0.85 litres of blood shorts through your brain every minute. The brain may be as little as 2% of your body weight, but it demand 25% of your blood supply. An elephant's brain weighs four times as much as the human brain. However, our brains are far bigger in relation to our bodies than those of any other animal. The cerebral cortex is the outside of the brain, and if it was laid out flat, it would cover a bed. The left hemisphere (half) of the brain is usually the word side, where the speech centres are. The right half is the picture side. Conscious thoughts and actions happen in the cerebral cortex. A human brain has a cerebral cortex four times as big as a chim

Health Brain’s waste removal system may offer path to better outcomes in Alzheimer’s therapy NIH-funded study in mice suggests lymphatic boost could help reduce amyloid buildup. Study of mouse brain shows the meningeal lymphatics system (purple and pink) could help reduce amyloid. Sandro Da Mesquita, Ph.D. Enhancing the brain’s lymphatic system when administering immunotherapies may lead to better clinical outcomes for Alzheimer’s disease patients, according to a new study in mice. Results published April 28 in Nature suggest that treatments such as the immunotherapies BAN2401 or aducanumab might be more effective when the brain’s lymphatic system can better drain the amyloid-beta protein that accumulates in the brains of those living with Alzheimer’s. Major funding for the research was provided by the National Institute on Aging (NIA), part of the National Institutes of Health, and all study data is now freely available to the broader scientific community. “A broad ra