Tag: healthy aging

Our brains do change from early to mid-adulthood


Scientists have been able to accurately estimate an individual’s age from their brain structure. The researchers found that significant microstructural changes occur in the brain from early to mid-adulthood. Until now, scientists thought that brain structure was relatively stable during this period of life, and this is one of the first studies to show that our brains continue to change throughout our early and mid-adulthood. ๐Ÿ“

Two-step process leads to cell immortalization and cancer


Immortalization of cells is a necessary step in the development of cancer, and scientists think that the main cause is turning on an enzyme — telomerase — that lengthens chromosomal telomeres and prevents normal cell death. A new study shows that turning on telomerase is not a one-step process. In melanoma, and probably other cancers, a mutation turns up telomerase slightly, keeping the cell alive long enough for other changes that up-regulate telomerase. ๐Ÿ“