I think it’s this but i might be wrong i’m not 100% sure
pharmacological
Answer: Bad breath, yellow teeth, fatigue and decrease in energy. And my Reduction in sense of taste and smell. And it has been known to cause cancer. My grandfather died 25 years after quitting smoking of small cell lung cancer. So my advice is don’t ever start.
Explanation:
Answer:
It is not required to be vaccinated for southwest airlines.
https://www.southwest.com