The most common addictions are tobacco, painkillers, and alcohol.
Nicotine and Tobacco
Nicotine, a component of tobacco, is the primary reason that tobacco is addictive, with some experts estimating that approximately 50 million Americans are dependent on it. Tobacco use, particularly smoking, kills hundreds of thousands of Americans each year. Smoking harms almost every organ in the body, causes many diseases, and compromises smokers’ health in general. Also, second-hand smoke has been proven to be harmful to others.
Cigarette smoking has been conclusively linked to cataracts and pneumonia. It accounts for about one-third of all cancer deaths, including cancers of the mouth, esophagus, stomach, pancreas, cervix, kidney, bladder, and lungs. Smoking has been linked to about 90% of lung cancer cases, a condition which is often fatal. Smoking also causes lung diseases such as chronic bronchitis and emphysema. Smoking makes asthma symptoms worse. Smoking substantially increases the risk of heart disease, including stroke, heart attack, vascular disease, and aneurysm. More than half of all smokers express a desire to quit smoking each year, but most relapse, often within a week.
The news is not all negative, however. The Centers for Disease Control and Prevention (CDC) reported a significant decline in the number of smokers since the mid-1960s.
Opioids
More than two million Americans suffer from addiction to opioids such as heroin, morphine, and prescription pain relievers like codeine, Vicodin, and Oxycontin.
These drugs are commonly prescribed to treat pain, however, addiction can develop from seemingly harmless initial levels of use.
Prescription opioids are similar in many ways to heroin and morphine. Opioids present an intrinsic abuse and addiction liability, particularly if used for non-medical purposes. Opioids are most addictive when taken via routes that increase the “high”, such as crushing and snorting pills, injecting the powder, or combining pills with alcohol or other drugs. In the past decade, evidence has suggested a relationship between increased non-medical use of opioid painkillers and heroin use.
Opioid use, even a single large dose, is incredibly dangerous. Researchers are studying the long-term effects of opioid addiction and brain function, and some propose that the depressed respiration caused by opioid abuse can lead to a comatose state. Opioid abuse can cause brain damage, collapsed veins or clogged blood vessels, weaken the immune system, and lead to an increased risk of HIV, infectious disease, and hepatitis. Read more about opioids.
Alcohol
Alcohol abuse and alcohol dependence are currently commonly referred to as Alcohol Use Disorder (AUD), and considered to be a chronic relapsing brain disease characterized by an impaired ability to stop or control alcohol use despite adverse social, occupational, or health consequences. A diagnosis of AUD may carry a “mild”, “moderate,” or “severe” sub-classification. It is widely thought that recovery is possible regardless of severity. According to the 2015 National Survey on Drug Use and Health (NSDUH), 15.1 million adults ages 18 and older are dealing with AUD. The researchers found that about 6.7 percent of adults who were diagnosed with AUD received treatment; an estimated 623,000 adolescents ages 12-17 had AUD and approximately 5.2 percent of those youths received treatment.
Heavy drinking, even if not rising to the level of a dependency, is still significantly detrimental to public health. Statistics show that excessive alcohol consumption leads to early death, especially among working-age adults, and carries with it billions of dollars in economic costs.