Saturday, November 15, 2025

Smoking cannabis with tobacco may disrupt the brain’s “bliss molecule”

Scientists found that people who use both cannabis and tobacco show a distinct brain pattern tied to mood and stress regulation. Their scans revealed higher levels of an enzyme that reduces a natural feel-good molecule in the brain. This imbalance may help explain why co-users experience more anxiety and struggle more when quitting.

from Top Health News -- ScienceDaily https://ift.tt/Drw3zFJ

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Old muscle stem cells can act young again but there’s a catch

Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds ...