Claims

The frog breath technique fills the lower lungs effortlessly in one second flat by opening the throat wide and using the diaphragm correctly, producing belly expansion rather than shallow chest breathing.

Air powers sound, so breathing technique is foundational to voice depth.

Choosing to lower the voice box every day during speaking is very tiring because you're using more muscles (the bungee ligaments are pulling the voice box down), similar to doing a squat for hours a day, making it exhausting and not recommended for long periods.

The voice box is in a naturally lower resting position immediately after waking up, making early morning the optimal time to practice voice deepening techniques.