What is substance abuse, what are the drugs young adults use today? Substance abuse is defined as overindulgence or dependence on an addictive substance, especially illegal drugs and alcohol. Substance abuse not only affects your entire body, but it also affects how you interact with your colleagues, colleagues, and in some cases, your loved ones. So, what are marijuana, alcohol, and MDMA, and what do these specific drugs do to you and your body. Here are the effects of each of these substances. Marijuana is an effect of substance abuse. Marijuana is the most commonly abused illegal drug. In a typical high school, one-sixth to one-quarter of students smoke marijuana (dye). Marijuana smokers can develop many of the same breathing problems as people who smoke cigarettes. These problems include daily coughing, wheezing, more frequent chest illnesses, and an increased risk of lung infections such as pneumonia. Marijuana also has the potential to increase the risk of lung cancer, because it contains carcinogens (cancer-causing agents). In fact, marijuana smoke contains up to 70% more irritants and carcinogens than tobacco smoke (dye). In addition to increased cancer risk, marijuana users suffer from short-term memory loss, inability to concentrate, loss of coordination, and slow reflexes. And regardless of what you may have heard, studies show that marijuana is an addictive drug, with painful withdrawal symptoms (dye). The plant dates back thousands of years. The earliest record is found in Chinese history dating back to 28 BC. This means that Chinese cultures were cultivating marijuana more than 2,000 years ago. However the plant may have been cultivated long before then; there are reports of an Egypt from almost 3,000 years ago... in the middle of the paper... but this is not the case. MDMA is a man-made substance and does not come from a plant like marijuana or tobacco. MDMA makers can add whatever they want to the drug, so its purity is always in question. Most people who abuse MDMA take pills, tablets, or capsules. These pills can be of different colors and can also contain cartoons. A dose of MDMA lasts three to six hours. Once ingested, it takes approximately forty-five minutes to feel an effect. In conclusion, the effects and causes of substance abuse are marijuana and how it affects the brain, alcohol and how it is marketed to youth and prevention tactics, and finally why MDMA impairs your decisions. . So don't do drugs, at first it might seem like fun and games, but in the long run it will not only ruin your body, but it will also impair your judgment, but it will also destroy families and destroy relationships..