Stuff in my Mind

I am interested in definitions of the mind. Here is mine: The mind is a constantly updating 3D sensual-picture of the the world.

One thing I sort of dread about the coming of Summer (a problem I never had in San Francisco cause it is always foggy) is that my mind shuts down complex and abstract thinking when the temperature gets above 75F/24C. Has anyone invented a device that regulates the temperature of your head? One that keeps it at the perfect temperature for thinking? Maybe the solution...