This paper explores the correlation between the presence and the number of elderly people in households and the labor supply of men and women between 18 and 54 years old, using data from the Argentina Permanent Household Survey for an extended period. Does the presence of elderly people alter the labor participation of men and women at central ages? It is proposed that this is so and that the correlation direction correlation will depend on the contribution they make to the home, or the demand for care they generate. Through the application of traditional multivariate models, it was found that the presence and the number of elderly people in the household is negatively related to the labor participation of men and women at central ages, and, in some cases, it relates positively with the participation of women. The effects on working hours are more elusive.