Ahli neuroscientis, Andrew Newberg, Direktur The Center for Spirituality and the Mind dari Universitas of Pennsylvania, mengatakan, menguap merupakan salah satu rahasia kesehatan.
"Kalau Anda ingin punya otak yang sehat, sangat penting untuk menguap," katanya.
sumber: http://kesehatan.kompas.com/read/2009/12/10/10303143/ssttt...menguap.bikin.sehat.lho (http://kesehatan.kompas.com/read/2009/12/10/10303143/ssttt...menguap.bikin.sehat.lho)
"Yawning helps us relax," explains Patt Lind-Kyle, therapist and educator, in her book Heal Your Mind, Rewire Your Brain. "It lifts our moods. It's good stuff. And it's free."
http://www.naturalnews.com/029659_yawning_medicine.html (http://www.naturalnews.com/029659_yawning_medicine.html)