Breathing wildfire smoke, even briefly, can change the bacteria and immune cells in your lungs, which may contribute to ...

Smoking tobacco is so harmful to the body that it changes a person's immune system, leaving them vulnerable to more disease and infection even years after they've quit, a new study found.Video above: ...

Smoking can produce multiple negative effects on the stomach and other organs of the digestive tract, leading to pain and discomfort in the abdomen. The harm from smoking may contribute to conditions ...

Long COVID is a collection of health problems caused by COVID-19 that remain or appear following the initial infection. It is implausible that face masks cause long COVID, contrary to claims made ...