A variable experience depending on the conditions in which this experience is lived, confinement can in a certain period of time lead to a harmful psychological impact on the human being. Playing on mood disorders, mental confusion and even post-traumatic stress disorder. These extremely rare but worrying phenomena occur with the duration of isolation, but also with other factors such as housing conditions, loss of income, lack of information, or boredom. Most of the negative effects come from the imposition of a restriction of freedom ; voluntary quarantine is associated with less distress and fewer long-term complications. According to the British scientific and medical journal The Lancet, in its article published on 26 February, the Lancet advocates the major importance of information to inform the public so that they understand the medical issue. However, in this article, it is clear that the newspaper strongly questions the restriction of freedom imposed. In France and throughout the world, these different associations in the current context, several committees of researchers are carrying out research on this subject. This research is intended to evaluate the conditions of confinement, the social environment and the mental well-being of the people concerned. Questions about general health, possible infection with the virus, concern about the risk of infection, the conditions of confinement (size of the home, number of people under the same roof, garden...), the social network before and during confinement, mood, emotions, stress level and perceptions are numerous among the population. However, a part of the population is more disadvantaged during this pandemic: the homeless. In France, the situation of the homeless is an important point in the management of the health crisis that is going through the country. Exposed to the health risks linked to the Covid-19 epidemic and with the coming winter cold, homeless people are considered to be at risk. While not dramatising the situation, the aid provided by local authorities and local associations is helping these people so that they do not feel even more alone than they already do through the marauding. In England, for example who enters a second COVID-19 lockdown, charities urged the government on Friday to revive a nationwide scheme to house rough sleepers over the winter, saying aid announced this week for homeless hotspots was not enough. Prime Minister Boris Johnson said on Thursday the ‘Everyone In’ programme had housed some 29,000 people since the first lockdown began - two-thirds of them permanently, and pledged 15 million pounds ($19 million) in new funding for 10 areas. Following his announcement, more than 70 charity groups wrote to interior minister Priti Patel and housing secretary Robert Jenrick to demand the national rehousing scheme be resurrected. They said people at risk of being deported - who cannot access state aid - would be especially vulnerable without similar help to house them. To conclude and be pragmatic about this subject, the help and solidarity of each person allows us to perceive in a different way how the epidemic has changed or strengthened our social relations with others.