You can't tell who has HIV by how they look because most people with HIV look as healthy as everyone else. The test can tell you if you are infected, but cannot guarantee that you are not infected. This is because after HIV infection, you body can take from six weeks to six months to produce antibodies in quantities detectable by the HIV test. So if you were infected two months before the test, you may sill have a negative test result even though you are infected and able to pass the virus to a sexual partner. Quick Facts on Alcohol and Other Drugs Beverage alcohol is a central nervous system depressant.
Alcohol is the most abused drug in our society and is as potent as many illegal drugs.
The average potency of marijuana, particularly a form called sinsemilla, has increased since the 1970's. Marijuana cigarettes yield almost four times as much tar as tobacco, creating high risk of lung damage. Marijuana users can become psychologically and physically dependent on the drug. Lethal overdose is possible with some hallucinogens. Overdose of opiates, such as heroin, can cause death by respiratory depression.