Licking your rats.
When a mother rat nurtures her pup it effects the pups GR gene. When the GR gene is more activated the easier and faster the pup can get over its stress. When the pup gets nurtured by its mother the GR gene gets more activated.
Nutrition
If you starve your self or your malnourished then that can effect your mental habits and it can shape your Epigenome. The diet of your parents can effect your epigenome Because if your parents are obese then they could get diabetes then you could stress yourself not to become obese like them and it can effect you for the rest of your life.
Human brain
