You have to think about the size here. My adult lungs have the power to exhale more vigorously than a 6 year old. In other words, for a child, it’s like putting a pillow over his face.
Issues to be considered...
“While analyzing lung microbes of 83 untreated adults with lung cancer, the research team discovered that colonies of Veillonella, Prevotella, and Streptococcus bacteria, which may be cultivated through prolonged mask wearing, are all found in larger quantities in patients with advanced stage lung cancer than in earlier stages.”
Although Studies also state prolonged massk usage does Not lead to lung cancer. But...