"Head trauma, likely a severe concussion, can lead to memory problems," Actaeon said, with a nod. The incidents he'd treated had been comparably minor, the loss of a few candlemarks, not an entire lifetime, but his patients were not usually dragonriders and their injuries had been from the ordinary sorts of falls and collisions.
He wondered if the telepathic bond riders shared with their dragons, or whatever mental quirk it was that allowed Impression in the first place, had any impact on the symptoms of concussions. Perhaps it would be worth surveying the records Fort's healers so diligently maintained, "Do you suffer short term memory loss as well, or only long term? How long does it take for your recall of an incident to become unreliable? Have you experienced any other alterations to your mental state and did they predate your trip through time?"
Actaeon felt decidedly on less firm ground discussing the flirtation proclivities of riders than the results of head trauma. He tried not to sound out of his depth, "I understand weyr manners are more...casual on these things. Likely a result of differing family structures, economic necessities and more accessible birth control leading to long term cultural changes. I will attempt to interpret any such interactions in context."