What is a common effect of heroin use?

Heroin is an opioid that produces profound effects on the brain and body. One of the hallmark effects of heroin use is the experience of intense euphoria, which is often described as a feeling of being in a state of "heaven" or bliss. This euphoric high is accompanied by a phenomenon known as "nodding," where the user goes in and out of consciousness, appearing drowsy or extremely relaxed. This combination of euphoria and sedation is a key reason why individuals may continue to use heroin, as they seek to recreate those pleasurable feelings.

The other options reflect effects that are not typical of heroin use. Heroin typically diminishes energy and alertness rather than enhancing them, as opioids tend to have sedative properties. Heightened sensory perception is more commonly associated with stimulants rather than depressants like heroin. Finally, while some users may experience anxiety—often due to withdrawal symptoms—the primary acute effects of heroin are not characterized by severe anxiety and paranoia but rather by relaxation and sedation.