How experiences affect your DNA | Rachel Yehuda
Epigenetic marks on stress-related genes persist through cell division, creating enduring biological imprints from environmental experiences like trauma. Research demonstrates that successful PTSD treatment induces reverse epigenetic changes in the same gene regions, effectively reversing the molecular signatures of stress. These findings confirm that while environmental factors alter gene regulation, the process is reversible through healing interventions. The presence of these marks explains why individuals remain sensitized to their environments yet remain capable of biological transformation.
A @lauracamonbio le han Timado con el Efecto Coriolis
A demonstration claiming to prove the Earth's roundness via the Coriolis effect in a small basin 5 meters from the equator is scientifically impossible due to the force being negligible at that scale. While the Coriolis effect dictates hurricane rotation in opposite hemispheres, local variables like basin geometry and residual water motion completely overwhelm the effect in a sink. The video reveals that the observed water rotation was likely manipulated by the demonstrator or caused by imperfections in the drain rather than planetary physics. This exposes a common myth where small-scale experiments are mistaken for proof of large-scale geophysical phenomena.