Smoking
It is a process in which a substance is burned, which is often tobacco, and then the smoke is tasted or inhaled. There are thousands of chemicals that affect the central nervous system, and cigarettes are the most common means of smoking. At the time, smoking is one of the most common manifestations of recreational drug use Smoking dates back to 5,000 BC, and has been found in many different cultures around the world. Smoking used to be a part of religious ceremonies. Such as offering sacrifices to the gods, purification rituals, or to enable shamans and priests to change their minds for purposes of divination and spiritual enlightenment, medical studies have proven that smoking is one of the main factors that cause many diseases such as: lung cancer, heart attacks, and it can also cause birth defects The proven health risks of smoking led many countries to impose high taxes on tobacco products, in addition to annual anti-smoking campaigns in an attempt to curb tobacco smoking. Opium smoking became widespread in the nineteenth century. Previously, only opium was eaten, and even then it was used for its medicinal properties. The effect of smoking on dental health
Smoking disrupts the absorption of calcium into the body, which is an important component of bone and tooth formation. Smoking can cause life-threatening diseases such as oral cancer. The possibility of developing gum disease also increases. (Periodontal disease) in people who smoke and the associated possibility of tooth loss