what is speed

Speed, also known as methamphetamine, is a potent and addictive central nervous system stimulant that affects the messages sent between the body and the brain. It is a type of amphetamine that can come in the form of powder or pills and can be swallowed, injected, smoked, or snorted. The effects of speed are felt immediately if the drug is injected or smoked, and can take up to half an hour to appear if snorted or swallowed. The effects can last up to 6 hours, depending on the dose. Speed can make people feel pumped and happy, as well as more alert and talkative. However, it can also cause unwanted side effects such as fast heart rate and breathing, increased blood pressure, loss of appetite, increased sex drive, and jaw clenching and teeth grinding. Over time, it is possible to become tolerant to speed, leading to dependence and addiction. Withdrawal from methamphetamine produces severe depression, anxiety, fatigue, and psychosis. Speed is highly addictive and can have serious adverse health effects, including memory loss, severe dental problems, weight loss, and malnutrition.