Talk about workouts! The human tongue stays busy with speaking, tasting and swallowing, not to mention any extra tongue tricks we make it do out of nervous habit (curling, thrusting, etc.). What do you know—or think you know—about this muscular organ?

Do you remember in biology class when your teacher told you the ability to curl your tongue was genetic? That’s not entirely true, although scientists give a nod to genetic influence. This fallacy was debunked in 1952, and yet the legend persists (Woods 2015).

Another myth is that the tongue is the strongest muscle in the body; that honor goes to the jaw muscle, while most powerful goes to the quads and glutes, and hardest-working to the heart. The tongue is special in its own right, though. It is all muscle—actually made up of eight different muscles that intertwine to create a “flexible matrix, much like an elephant’s trunk . . . called a muscular hydrostat” (Calderone & Fogelson 2014).

Did you know the tongue can get fat? There’s a correlation between tongue fat volume and obesity. And in fact, a study revealed that having a fatter tongue may be a risk factor for obstructive sleep apnea (Kim et al. 2014).

Here are some additional facts about the tongue:

  • The average tongue length is 8.5 centimeters (3.3 inches) for men and 7.9 cm (3.1 inches) for women, measured from the epiglottis to the tip (Hopkin 1967).
  • The tongue is as unique as a fingerprint and can act as an identity verification tool (Daller 2016).
  • In Chinese medicine, the tongue is a “convenient diagnostic tool” and “can reveal signs of disease and imbalance” (Milner 2016).
  • The average adult has between 2,000 and 4,000 taste buds (Daller 2016).
  • A 2015 study found an association between physical fitness among older adults and oral function, “including tongue and lip movements” (Izuno et al. 2015).



Calderon, J., & Fogelson, B. 2014. Fact or fiction?: The tongue is the strongest muscle in the body. Scientific American. Accessed Jun. 20, 2017:

Daller, J.A. 2016. Fun facts about your tongue and taste buds. OnHealth. Accessed Jun. 18, 2017:

Hopkin, G.B. 1967. Neonatal and adult tongue dimensions. The Angle Orthodontist, 37 (2), 132–133.

Izuno, H., et al. 2015. Physical fitness and oral function in community-dwelling older people: A pilot study. Gerodontology, 33 (4).

Kim, A., et al. 2014. Tongue fat and its relationship to obstructive sleep apnea. Sleep, 37 (10), 1639–48.

Milner, C. 2016. The tongue is a map of the body in Chinese medicine. The Epoch Times. Accessed Jun. 14, 2017:

Woods, C. 2015. Debunking the biggest genetic myth of the human tongue. PBS Newshour. Accessed Jun. 17, 2017:


Joy Keller

Joy Keller is executive editor of IDEA Fitness Journal and IDEA Fit Business Success, and is also a certified personal trainer, indoor cycling instructor, yoga teacher (RYT 200) and Reiki Master.

Leave a Comment

When you buy something using the retail links in our content, we may earn a small commission. IDEA Health and Fitness Association does not accept money for editorial reviews. Read more about our Terms & Conditions and our Privacy Policy.