My thinking process has definitely changed since I had Mars. I be zoned out, burning food forgetting food everything. Mommy brain is a phrase used to refer to the cognitive changes that a new mother experiences after giving birth. Many new mothers describe changes to the way that they think and feel after having children, such as feeling less focused or sharp and a general decrease in mental energy. This can last for a year or forever for some mothers. Follow @thecosmicdoula_ for more info.