Taste and smell are senses reacting upon solutes from food and breathing air conveyed by the cranial nerves. Normal aging includes cellulary and extracellulary biochemical mechanisms detrimental to neurons in the central nervous system, including those processing taste and smell signals. Aging also means reduction of the number of taste buds in the oral cavity and of the number of odor receptors in the nasal mucosa.

Mange forskere hevder at regelmessig tilførsel av probiotika også kan ha en hemmende effekt på kariesutvikling og periodontal patologi ved at tilførte bakterier konkurrerer med patogener både med hensyn til adhesjon, næringsstoffer og vekstfaktorer

Experiments using radial arm mazes show that mice and rats have difficulties finding food when their chewing capability is disturbed after molar extraction. Observations of this kind have indicated an association between mastication and cognition. Experimental evidence show increased blood stream and neuronal activity in young individuals using chewing gum. Some experiments also indicate that […]