The present work deals with the rights for health for the elderly in the public as well as private environments. Starting from the premise that the rights to health has priority nature, when the third age is concerned, one tries to identify what are the peculiarities of these rights when it is given to the elderly. In the beginning, one considers the legal vulnerability of the elderly in order to justify several rights that are attributed constitutionally and hierarchically below the constitution to them in a priority way that enable them to accomplish their ideal health. The constitutional mechanisms that refer to the elderly and proposes that the rights to support them, taken from the Brazilian Constitution from 1988, is treated as material of fundamental rights, once it does not come from the formal catalog of fundamental rights. At the level of the law that are hierarchically below the constitution, the normative contents from the Elderly Decree - from where the principle of best interest of the elderly is built - were analyzed together with the Brazilian Civil Code where the elderly rights were referred to in specific points. What is defended in this thesis is that the health of the elderly given by the State constitutes constitutional rights of fundamental nature. The theories of the possible reserve and the minimum existence are studied. The Sistema Único de Saúde - the public health system, is required to supply the rights for health to the elderly. The horizontal incidence of the basis of the rights to health supported by the private companies and the consequent state intervention where the contracts for health care plans are concerned is defended through contract review and applications of principles of the social function of the contract and the objective good faith in the pacts done between the elderly and the private health companies.At the end, the tools that enable the efficiency when the rights to health for the elderly is concerned are examined with the due priority, susceptible to development only in a democratic state which is based on the fundamental rights of freedom, equality, solidarity as well as in the constitutional principle of human being dignity.