1950's camel cigarette ads Ad, 1950 Spiral Notebook Wayne For Camels”1950s
Description
One new requirement is that companies must prove to the FDA that a product is safer than conventional cigarettes before it can be marketed as such

Copeland et al., 2017

This is largely due to the improving function of your cilia and the reduction in mucus production

A failed accessory relay can also be to blame
