Despite the impact post-COVID parosmia has on people's lives, with half of respondents reporting depression, researchers say not enough is known about it.
The research used MRI scanning to compare the brain activity of people with long Covid who lost their sense of smell, those whose smell had returned to normal after Covid infection, and people who had never tested positive for Covid-19.
Smell loss can predict the risk of frailty and unhealthy aging. Therefore, including smell tests as a part of routine screenings can benefit physiologically vulnerable older adults