In the past we attributed gum recession to either wrong brushing technique or using a hard brush or some repetitive trauma. Today we realize that it is likely to a be multifactorial condition or associated with those factors mentioned above and/or other conditions that may be disease related. Gum recession could be associated with other conditions such as stress. Often people who are under stress unconsciously clench and grind their teeth. So, stop stressing!!! If you cannot stop stressing ask your dental professional about options.