What is a drug?

The video explains the effects of drugs on the body, focusing on stimulants and depressants. Stimulants increase alertness and speed up bodily functions, while depressants slow them down. The video also discusses the impact of these drugs on the nervous system, highlighting how they alter synaptic transmission. Examples of stimulants include caffeine and cocaine, while alcohol and cannabis are common depressants. The video emphasizes the potential health risks associated with drug use, such as addiction and mental health issues.

What new insight or understanding did you gain from this video?