Tobacco smoking
Smoking can cause heart attacks, if continued for years of using tobacco or any other powders used for smoking, including marijuana. Smoking can cause mental, as well as physical health problems, such as schizophrenia, depression, mood swings and many others. If a smoker continues smoking for years, or even decades, their health will worsen. Smoking can cause coughing, or inflammation (swelling) of the throat or lungs. The alveoli are air sacs via which breathing happens, but they will become badly damaged. Once breathed in, the tobacco smoke travels down the trachea and enters the lungs. When entering the body, the smoke would damage the cilia, which are millions of small hairs that push away mucus when it enters the body. If the lungs become even more damaged, smokers may not be able to breathe on their own, and they will be put on a device to help them breathe such as a ventilator. In some cases, smoking causes the lining of the lungs to become inflamed, making the smoker unable to breathe, which leads to death.