Why am I being asked to do a cognitive assessment?

Previously we have found that some people who had COVID-19 struggle more with certain types of cognitive task even some years after they have recovered from their illness. A key question is whether this relationship diminishes with time, e.g., do we see some signs of recovery of cognitive abilities. We also are interested in studying whether there is a relationship to wellbeing (anxiety, depression, sleep, fatigue) and any relationship to everyday life, e.g., return to work etc.