Menthol is a chemical naturally found in peppermint and other mint plants, but it can also be made in a lab. First added to tobacco in the 1920s and 1930s, menthol reduces the harshness of cigarette ...
Outdoor air pollution is unhealthy for everyone, but some groups of people are more vulnerable than others. Taken all together, these groups make up a large portion of the population. Children face ...
The air we breathe is filled with lots of things including gases and particles – Most are too small to see with the naked eye. Everything we breathe affects our health in different ways. Health ...