drugs can be bad for your health because they greatly affect how your system and brain function depending kn the drug itself along with the person taking it and their surroundings. Some examples are, increases in illness such as anxiety, depression, and psychosis. Once a drug is in your bloodstream it circulates through your body, being distributed to different organs and the brain. The drug affects chemicals and receptors within the brain, causing different effects depending on the type of drug. Withdrawal effects can sometimes be what takes the greater toll on the body, causing things such as insomnia, nausea, and loss of appetite. Taking to much of a drug will result in an overdose and in most cases, cause death.