They say that the scent of smell is the most base of all the senses and hence sense most connected with the deeper structures of the brain. Apparently this is also the reason why smells, more so than other sense-input, will trigger memories.
Right now, sitting in my under-designed too-stark office I was transported back to my Oma and Opa’s house through the small of paprika and slightly burnt, or perhaps stale, coffee.