In recent months, throughout the world, including Quebec, catastrophic events such as floods, rail accidents and fires in senior homes have unfortunately affected many people over the age of 65. Some of these people suffered serious injuries, others feared for their lives, and unfortunately many of them were unable to deal with the dangers, thus succumbing to these atrocious conditions. The purpose of this article is to highlight the prominent facts of a scientific literature review on the factors that make seniors vulnerable to disasters and those who protect them during and after a disaster. In this regard, studies have generally found that in disasters, people over the age of 65 are at greater risk than younger adults to die, to suffer injuries, not to receive enough assistance and support from public authorities or non-governmental organizations (NGO) and to develop post-disaster health problems. It will also be possible to see that there are three different points of view when discussing the consequences of disasters on the health of the elderly. Some researchers believe that elderly people represent a population that is particularly at risk of developing physical or psychological health problems as a result of exposure to a traumatic event, while others consider that seniors, especially those over the age of 65, are better off in these situations than younger adults. Other studies have shown that elderly people are not more affected than younger victims and that the vulnerability and resilience of disaster victims are not necessarily age-related. This article will also present some qualitative and quantitative data from research in Quebec on the medium and long-term effects of disasters on the physical and psychological health of seniors. In these various studies relating to the impacts of severe flooding and ice storms on the health of seniors and their recovery process, Maltais and his collaborators were able to identify the main difficulties experienced during and after their exposure to this type of disaster as well as the impact of this type of event on their health and living conditions.