Reach Us +441474556909
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.


Human Evolution and Laryngeal Functions: A Simple Solution for Problems Caused by Physiological Aging

Purpose: Physiological ageing affects function of the evolved human larynx with respect to both speech communication and swallowing. Those decrease the quality of life in human being. For the latter, it increases the tendency for aspiration. This will increasingly become a problem as lifespan increases and a growing number of people suffer from physiological ageing. Here I suggest a simple solution for such ageing problems.

Methods: Based on my previous research (National Hospital Organization Japan program, Randomized control trial) and clinical experiment.

Results: As a substitute for laryngeal elevation, we recommend that people draw in the jaw during the act of swallowing. A vocal exercise therapy allowed vocal cords to adduct and improved glottal closure insufficiency.

Conclusion: “Just keep communicate to speak in old age”, which prevent the vocal fold and the intrinsic laryngeal muscles atrophy for the volume and adduction of vocal folds movement for the satisfactory glottal closure.


Koichi Tsunoda

Abstract | Full-Text | PDF

Share this  Facebook  Twitter  LinkedIn  Google+
Flyer image

Abstracted/Indexed in

  • Index Copernicus
  • Genamics JournalSeek
  • JournalTOCs
  • China National Knowledge Infrastructure (CNKI)
  • CiteFactor
  • CINAHL Complete
  • Social care institute for Excellence(SCIE)
  • Scimago
  • Ulrich's Periodicals Directory
  • Electronic Journals Library
  • Directory of Research Journal Indexing (DRJI)
  • WorldCat
  • Proquest Summons
  • MIAR
  • ResearchGate
  • University Grants Commission
  • Secret Search Engine Labs