A lifetime interest in eye movements and the autonomic nervous system. I'm currently working on HRV and BPV in patients with metabolic syndrome, diabetes mellitus (with and without neuropathy), POTS and vasovagal syncope. I'm also interested in the history of blood pressure, particularly on Samuel Von Basch, Nikolai Korotkoff and some other physicians who appear in the mural of Diego Rivera at the Mexican Institute of Cardiology.