Genome-wide sperm DNA methylation changes after 3 months of exercise training in humans
Exercise can affect your unborn children's genes by altering the chemistry of DNA in sperm and egg cells. Aerobic exercise for 3 months altered sperm DNA by silencing genes linked to the risk of autism, OCD, Alzheimer’s, obesity, type 2 diabetes, and atherosclerosis.
This is called transgenerational epigenetic inheritance. Animal studies have shown that exercise-induced genetic changes are a direct factor driving beneficial changes to offspring’s brain physiology, cognition, neurogenesis, & mitochondrial activity.