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Robot nannies could diminish child care worries for parents of young children. Equipped with alarms and monitoring capabilities to guard children from harm, a robot nanny would let parents leave youngsters at home without a babysitter. Sign us up, parents might say. Human-like robot babysitters are in the works, but it's unclear at this early stage what children's relationships with these humanoids will be like and what dangers lurk in this convenient-sounding technology.

Young adults who easily engage in rewarding conversations with their partners are less likely to hold onto anger and stress and more likely to be satisfied with the relationship, according to research from Kansas State University.