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.
More than 16 million people already have at least one disease from smoking. More than 20 million Americans have died because of smoking since 1964, including approximately 2.5 million deaths due to exposure to secondhand smoke. 8.6 million people live with a serious illness caused by smoking. On average, smokers die 13 to 14 years earlier than nonsmokers.