Fluorescent lamps also flicker as they are turned on because it takes a few moments for the gasses to heat up sufficiently to produce light. LED lights do flicker, but not in the same way, and as a matter of fact, they flicker at such a fast rate of speed that it is usually imperceptible to the human eye. Non-Rectified Flickering LED Lights. It is a fact that all LED lights naturally flicker at a rate of approximately 60 Hz per second.
Risks from smoking, as they relate to lung disease, include the following: Chronic obstructive pulmonary disease (COPD) which includes: Chronic bronchitis. Chronic bronchitis, a long-term inflammation of the bronchi (large airways), is characterized by coughing mucus over a long period. Emphysema.
Smoking tobacco. Smoking tobacco is one of the biggest causes of lung cancer. More than 8 out of 10 lung cancers (80%) are caused by smoking .This includes breathing in other peopleâs cigarette smoke. Even light or occasional smoking increases the risk of lung cancer.