I believe it. I read the pop sci book “Breath” recently—as I remember it says jaw development has degraded in modern humans because of the availability of soft

I believe it. I read the pop sci book “Breath” recently—as I remember it says jaw development has degraded in modern humans because of the availability of soft foods and increased mouth breathing. We need to chew to develop properly. Apparently this impacts the sinuses and airway which causes sleep apnea and other respiratory issues, leading to bad sleep and worsened cognition overall.