epigenetics

This shows a diagram from the study

Adolescent drinking increases anxiety and alcohol abuse risk later in life

Teenage binge drinking is linked to altered gene expression in the brain, specifically the central nucleus of the amygdala. Adolescent rats exposed to alcohol had increased levels of miR-137, resulting in lower expression of proteins essential for healthy neuron growth. During adulthood, these rats displayed higher levels of anxiety and an increased preference for alcohol consumption.... Read More...
This shows a DNA double helix

Gene linked to autism undergoes changes in men’s sperm after cannabis use

Marijuana use alters a gene associated with autism in sperm. Hypomethylation was identified in the DLGAP2 gene in the sperm of male rats exposed to THC. The hypomethylated state was also detected in the forebrains of their offspring. Further research is needed to establish if there is a definitive link between paternal cannabis use and ASD in humans.... Read More...