Lying about and/or hiding things is what dementia don done done done did done do 24/7.
He is TERRIFIED that we will find out something very ugly in his tax returns
He is TERRIFIED that we will find out something very disturbing about his health
He lies all the time about everything. His wealth or lack thereof because he is ashamed of how little he is worth and his health because he is obese has a lousy diet doesn't exercise.
Not smoking and not drinking booze doesn't really make up for being lazy overweight and eating junk food.