인도네시아 동굴서 2만5000년 전 향정신성 견과류 사용 흔적 발견

What if humans have been using drugs not for hundreds of years, but for tens of thousands?

Scientists working in Indonesia have uncovered something fascinating in ancient caves. They found evidence that early humans living 25,000 years ago were using betel nuts — a plant that grows in tropical regions. The exciting part? These early foragers were not just eating the nuts for food. They were using them because of their psychoactive properties, meaning the nuts changed how their brains worked and how they felt.

Betel nuts contain a substance called arecoline. When people chew betel nuts, this chemical affects their body and mind. Early humans likely discovered that chewing these nuts made them feel different — perhaps more alert, more relaxed, or more creative. Over time, they may have used them during important ceremonies or social gatherings. This was not accidental discovery; it suggests our ancestors intentionally sought out these effects.

The research team examined remnants found deep inside Indonesian caves. They looked at shells, stones, and other objects left behind by ancient people. By studying the patterns of these artifacts, scientists could piece together how early foragers spent their time. The evidence showed that betel nuts were not occasional finds — they appeared regularly in different layers of cave floors, suggesting consistent use over many centuries.

This discovery changes how we think about human behavior and history. We often imagine that drug use is a modern problem or a recent development. But this research from Indonesia tells a different story. Humans have always been curious about substances that alter their perception. Long before written history, long before modern technology, people explored how plants could change their consciousness.

It is important to understand what this discovery really means. Archaeologists are not saying that early humans were careless or reckless. Instead, they are showing that the desire to experience different states of mind is deeply woven into human nature. This impulse has existed for at least 25,000 years. Understanding this helps us see ourselves more clearly — our ancestors were thinking, curious beings who made choices about their own experiences.

The betel nut discovery also reminds us how much we still do not know about prehistoric life. Every year, archaeologists uncover new evidence that challenges old assumptions. Future research might reveal even older examples of drug use, or show how this practice spread across different regions. The story of human civilization keeps growing richer and more complex.

What draws people to these kinds of experiences? Is it simple curiosity, social bonding, or something deeper? When you think about why humans might have valued betel nuts 25,000 years ago, what reasons come to mind?

Inspired by reporting from BBC News.