I think we've established that prolonged contact between us has a tendency to mess with both of our minds. Laying on me isn't going to return your intelligence.

[ That hand on Kaveh's head gently removes itself, Alhaitham letting it fall to the side lest he start following such mindless temptations like running it through Kaveh's hair. Kaveh is free to move whenever he wishes now. ]

One possible theory is that our continued close proximity to each other before this in Sumeru had an effect on our reactions. Another is that our visions, genetic make up, or temperment have some influence in the matter. Tighnari would be a better resource for investigating that.