Answer:
How Drugs Work
Drugs are chemicals or substances that change the way our bodies work. Some are medicines that help people when doctors prescribe them. Many have no medical use or benefits.
When taken (usually by swallowing, inhaling, or injecting), abused drugs find their way into the bloodstream. From there, they move to the brain and other parts of the body. In the brain, drugs may intensify or dull the senses, change how alert or sleepy people feel, and sometimes decrease physical pain.
Because of the way these drugs work on the brain, they affect the ability to make healthy choices and decisions. Even drinking makes people more likely to get involved in dangerous situations, like driving under the influence or having unprotected sex.
Although substances can feel good at first, they can do a lot of harm to the body and brain. Drinking alcohol, smoking or using tobacco, taking illegal drugs, even sniffing glue all damage the human body.
Commonly abused drugs include:
alcohol
amphetamines
bath salts
cocaine and crack
cough and cold medicines (DXM)
depressants
GHB
heroin
inhalants
ketamine
LSD
MDMA/Ecstasy
marijuana
methamphetamine ("meth")
mushrooms
PCP
prescription pain relievers (opioids)
Rohypnol
salvia
