Taste Buds - sensory organs that are found on your tongue and allow you to experience tastes that are sweet, salty, sour, and bitter.
The average person has about 10,000 taste buds and they're replaced approximately every 2 weeks. An older person may only have 5,000 working taste buds. Certain foods may taste stronger or milder depending where in the tongue and how many taste buds the person has.
Smoking and aging can reduce the number of taste buds a person has.
A small percentage of the population have an abnormally high number of taste buds on their tongue. In the case with these people, they are often known as "super tasters" and can taste many subtle flavors that most other people can't. They usually have a deeper appreciation for food flavors, quite commonly various spices, cheese and wine.