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Oct 18, 2023 · Why free will doesn't exist, according to Robert Sapolsky. It's hard to let go of the idea that free will exists, but neuroscientist Robert Sapolsky says that society starts to look very...
Oct 17, 2023 · After studying humans and other primates for 40 years, Stanford neurobiologist Robert Sapolsky has concluded that many factors beyond our control influence our choices and behaviors, leaving free...
- Corinne Purtill
- Staff Writer
- corinne.purtill@latimes.com
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The average brain contains about 100 billion brain cells, most of which were formed before birth. In the earliest stages of childhood, new brain cells continue to be made at a brisk pace. Over the years, neurogenesis gradually declines, but the process doesn’t stop even into older age. That’s especially true in the hippocampus. There are two of the...
Scientists have explored several specific questions about neurogenesis. For example, what exactly "turns on" neurogenesis in the hippocampus? What effect does it have on memory? And perhaps most important, is it possible to increase neurogenesis to improve cognition in people with Alzheimer’s? Unfortunately, human studies on neurogenesis are limite...
Even though these findings were from animal studies, Dr. Tanzi says people could gain the same brain benefits through aerobic exercise. "Right now, there is no substitute for regular exercise to help with neurogenesis," says Dr. Tanzi. Yet it’s not clear what kind of exercise works best, nor how long and how much is enough. Until those questions ar...
- hhp_info@health.harvard.edu
Mar 25, 2019 · June 2019 Issue. Neuroscience. If the memory center of the human brain can grow new cells, it might help people recover from depression and post-traumatic stress disorder (PTSD), delay the...
Mar 11, 2022 · New cells arise from older cells. The DNA inside the nucleus is duplicated and the cell splits into two. All cells come from a cell, and new life comes from old life. But at this point, observing cells under the microscope was like looking at a house using the bird’s eye view of Google Maps.
Mar 29, 2021 · However, this bacteria-like organism behaved strangely when growing and dividing, producing cells with wildly different shapes and sizes. Now, scientists have identified seven genes that can be added to tame the cells’ unruly nature, causing them to neatly divide into uniform orbs.
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Mar 3, 2020 · Organs like our skin (yes, the skin is the biggest organ of the body!) need to regenerate often. The skin’s stem cells produce new cells when the old ones are lost, like when we get a paper...
