▲

Drug abuse can come in many forms, and what's most worrying is that some of the most powerful drugs out there are legal and easily accessible.

Click through the following gallery to see the worst drugs that people can get addicted to.

▲We all know this by now—cigarettes kill. Smoking is harmful to nearly every organ in the body, and it reduces the general health of all those who partake in this addiction.

▲Quitting lowers your risk of various diseases and adds years to your life. If you need assistance, talk about the available options with your doctor.

▲Cigarette smoking is linked to several illnesses, including coronary heart disease, stroke, and lung cancer.

▲Alcoholic beverages are some of the most dangerous legal drugs out there, as they are highly addictive.

▲Alcoholism can affect anyone across all ages and social class.

▲However, this type of medication is extremely dangerous.

▲Adderall is a central nervous system stimulant, often used to treat ADHD (attention deficit hyperactivity disorder).

▲High use of fat burners is linked to conditions such as heart attack and stroke.

▲Although there's been a shift in consciousness surrounding weight loss and a healthy lifestyle, there are still many people who resort to over-the-counter fat burners.

▲Antidepressants are some of the most consumed and addictive legal drugs in the world.

▲According to the World Health Organization, around 3.3 million people die every year from "harmful use of alcohol."

▲Adderall is also commonly used among university students to improve focus and memory, in addition to enhancing mental performance.

▲The use of antidepressants has been on the rise for years now. In the US alone, 13% of people are said to be on some kind of depression medication.

▲However, the drug can have serious side effects, including loss of appetite, mood changes, anxiety, and insomnia.

▲The performance-enhancing drug has been used by many athletes throughout the years, including cyclist champion Lance Armstrong.

▲Side effects include elevated blood pressure, increased aggressiveness, weight gain, and acne.

▲Although antidepressants may ease the symptoms of depression, some people experience side effects and go through terrible withdrawal when discontinuing their meds.

▲A recommended daily dose of coffee can be beneficial for your health, but there are many detrimental effects to excessive caffeine ingestion.

▲Side effects may include clammy skin, mood changes, and lethargy.

▲If you'd like to ditch the coffee, healthier and equally tasty alternatives include matcha tea and green tea.

▲Painkillers have become one of the world's leading health concerns, as they are highly addictive.

▲In the US alone, around 54 million people have used prescription drugs for non-medical reasons.

▲Steroids are used beneficially in many situations, but unsupervised excessive usage can lead to several problems.

▲Many people rely on sleep medication to get some shut-eye, especially if they suffer from other mental health issues, or work varying shifts.

▲

The country's opioid pain-killer issue has become such an epidemic that it has led to the misuse of illegally produced opioids like fentanyl—the drug responsible for killing Prince and Tom Petty.

▲Certain cough medicines contain codeine, a mind-altering substance.

▲Although the abuse can go unnoticed for years, side effects can manifest in less than two weeks of regular usage.

▲

An increasing number of youngsters have been consuming cough and cold medicines for hallucinogenic purposes.

▲These side effects can include body sweats, hallucinations, and spasms.

▲

High quantities of over-the-counter cough medicine can have the same effects as certain illegal drugs, such as LSD and mushrooms.