A human taste bud has a life span of approximately 10 days. Although the taste bud itself will not die, its cells will rejuvenate themselves regularly. The taste bud has two types of cells: the short term and long-term cells. It does take a lil' time for the cells to become reinervated as well. I just went
through a bout of vapers tongue myself which doesn't normally happen. I drink plenty of water so that wasn't it. I was able to taste certain juices just not the one's I wanted, LoL. My taste buds are now back to tasting everything I love so don't lose hope just change up some flavors for a lil' bit.