In case you haven't guessed I'm no spring chicken, I've always been something of a sweet tooth and had a number of discussions regarding my preference for sugar in coffee, typically about 3 grams in a double ristretto and around 5 grams in a cappuccino, not something new, have always enjoyed some sweetness in coffee and the amount I use is not increasing with age.
Did a Google search this afternoon and came up with this,
Changes In Taste And Smell
Taste and smell are two separate and distinct senses that often work together for different purposes. They can detect pleasurable sensations or warn a person of danger. They also play an important role in the acceptance and enjoyment of food
