Genes
Coverage of Genes in the Nexus archive.
- New clues about whether genes or environment influence our health more
The article presents new clues about the relative influence of genes versus environment on health. It emphasizes that health outcomes are not solely determined by personal choices.
- Humans Haven't Stopped Evolving
The article discusses ongoing human evolution, highlighting genes and selective pressure as factors. It is published by Harvard Magazine and has sparked discussion on Hacker News.
- Fast walkers in their 80s halve their risk of cognitive decline, study finds
A study finds that fast walkers aged 80 and older have about a 50% lower risk of cognitive decline, highlighting a strong link between physical health, strength, and brain health. The study also notes that genes, environment, and habits influence this connection.
- Huge study of Alzheimer’s genetics identifies new drug targets
A large-scale study on Alzheimer’s genetics has identified over 50 new genes associated with the disease and observed changes in critical cells that diminish as dementia progresses. These findings highlight potential new drug targets for Alzheimer’s treatment.
- Evolution isn’t random. Scientists find the same genes used for 120 million years
Researchers found that distantly related butterflies and moths have reused the same pair of genes for over 120 million years to produce similar warning colors. Evolution modifies how these genes are switched on and off rather than altering the genes themselves. This discovery hints that life may evolve in more predictable ways than previously believed.