The effects of humming on the human body, simplified, include:
Boosted Nasal Health: Humming causes a major increase (15 times more) in nasal nitric oxide, which is a molecule important for overall health.1
Calming the Body: The vibrations from humming help activate the vagal nerve. This nerve is often called the body's "rest and digest" switch, which promotes relaxation.1
Improved Circulation and Balance: The resonance impacts blood flow in your lungs and helps regulate your autonomic nervous system, which controls automatic body functions like your heart rate and breathing.1
Brain Cleansing: Humming influences the fluid around your brain (cerebrospinal fluid), helping with brain "cleanup" and managing pressure inside your skull.1
Better Breathing: The act of humming provides a "breathing ratio advantage" that improves how your body generally functions.1

This information may be true but I doubt it. I'm pretty sure Feynman never did a lecture on humming.

Messages

Juanita Prayer

FourFingers

GrowingUp

Brian Smith


Introduction

Verity Fiadonu


AngryDiane

Presence

A Grief Observed

Deeply Loved

Faithful And Thankful

Diane Reese


A Young Voice Making Straight The Way

HurtingHanna

Joy

Hanna Reese


James 5

John Selander


Crucificion

HowDoWeComeToJesus

James 4

Jason Cole


Asking in Faith

Love

James 3

White Shoes

Psalm44

Vitalia Strait


James 1

Ben Jones


Sadness and Joy can dance

Adam Patterson


A prayer from John S. Barnett

John S. Barnett


Communion

Unknown


Thoughts and Questions

Weiner Dog Whining And Great Joy

Is he waiting for me?

What is His End Game?

Jim Esteban


Poems of Joseph Mott-Smitt

Guarding the Gate To Your Mind

Waves In the Ocean

Joseph Stanley Mott-Smith