We yawn when tired or bored, but the exact reason remains unclear. Yawning is contagious, possibly due to our brain's empathy, but the mechanism behind this is still unknown. (P.C- Pexels)
Unlike regular matter, dark matter doesn’t emit or reflect light. Despite its invisibility, dark matter's existence is inferred from its gravitational effects, yet its exact nature remains elusive. (P.C- Pexels)
The placebo effect occurs when a person’s health improves after taking a dummy treatment. How placebo effect works is still not fully understood by scientists. (P.C- Pexels)
While it's known that cats purr by vibrating muscles around their larynx, the reason behind this behavior is debated. (P.C- Pexels)
Known since Newton's era, gravity is understood in terms of its effects and force. However, science still doesn’t fundamentally understand what gravity "is." (P.C- Pexels)
Surprisingly, tomatoes have more genes than humans. The reason for this genetic abundance in tomatoes compared to humans is still a mystery. (P.C- Pexels)
Scientists have not yet reached a definitive explanation of why ice has such a slippery surface compared to other materials. (P.C- Pexels)