 Mm-hmm. I'm always studying body language, and I think I was struck by the walk, the movement of each of them when they walked out. So, Dr. Pakala, we know we're not going to ask you to try to diagnose either of the candidates simply by looking at video of them on the news. But what's your take on the call for both candidates to take cognitive tests? Joe Biden is 81 years old and Donald Trump is 78. Is there value in that?