Background and Objectives:
The lockdown caused by the COVID-19 pandemic brought about important changes in the daily lives of Brazilians, a fact that needs to be observed especially in the elderly, a portion that is in constant population growth. This confinement can trigger several psychosocial effects, such as feelings of loneliness, sadness, anxiety, among others, so that knowing them, in the elderly population, is understanding what is going on with their Mental Health and, thus, being able to reorganize the Health Services (through strategies and protocols) to provide the necessary support to patients.

Methods:
This is a basic, observational and cross-sectional study with a descriptive objective and a mixed methodology. 253 elderly people were interviewed in a city in the interior of the state of So Paulo, Brazil, in the last quarter of 2022 - health professionals and people with severe mental disabilities were excluded from the study.

Results:
38.25% of the elderly surveyed are male and 61.73% are female. In relation to thinking that, during lockdown, the ability to identify their own emotions and those of others worsened, 19.13% answered yes; as for feeling sad for not being able to share time with their loved ones, 83.61% answered yes; in relation to feeling anxiety for not being able to predict what would happen, 77.6% answered yes; when asked if they suffered from loneliness, 66.3% answered yes.

Conclusion:
The present study shows that a large part of the elderly population presented sadness, anxiety and/or loneliness during lockdown due to the COVID-19 pandemic, even surpassing the values ​​mentioned by the World Health Organization (WHO), so that Public Politics in Mental Health need to be created (or expanded) to serve this portion of the population, improving their quality of life.