<Activities for both groups (intervention and control)> Investigators will deliver written relevant information about the recommended alimentation of the women at postpartum as well as some ideas for physical activity, such as going for a walk, doing some household chores that involve physical exertion. This technical information is derived from the literature and will be expressed in a simple and accessible way. Each issue will be sent separately, ie, will be three times for sending the information. For those women who leave the study before the first year of her child, investigators will send them the information at once.