He has incredible reflexes, which, combined with his leaping powers, enable him to seemingly bounce off walls (ricochet, as it were).
en.wikipedia.org In people with essential hypertension the baroreceptors and their reflexes change and function to maintain the elevated blood pressure as if normal.
en.wikipedia.org Patients may present with consciousness problems, headaches, nausea, visual defects, fatigue, disturbance of eye movements and pupillary reflexes, or coma.
en.wikipedia.org Neurologic examination should assess cognitive and mental abilities, cranial nerve function, motor function, deep tendon reflexes, sensory function, coordination, and gait (if appropriate).
en.wikipedia.org This includes no response to pain and no cranial nerve reflexes.
en.wikipedia.org