Medicine
How Does Anesthesia Work?
Anesthesia works by flooding the brain and nervous system with molecules that disrupt the electrical signals neurons use to communicate, pressing pause on consciousness, memory, and pain processing.
Biology
How Does the Immune System Work?
The immune system is a layered defense network of barriers, rapid innate cells, and precise adaptive cells that learn to recognize threats and remember them for future attacks.
Biology
How Does Blood Clotting Work?
Blood clotting is a cascading chemical relay that turns liquid blood into a tough fibrin mesh, sealing wounds quickly while trying to keep the clot limited to the injured area.
Technology
How Does Wireless Charging Work?
Wireless charging uses electromagnetic induction: a coil in the charger creates a changing magnetic field, which induces current in a matching coil inside the device.
Neuroscience
How Does Pain Work?
Pain begins with danger signals from tissue, but pain itself is constructed by the brain after weighing injury signals against context, memory, emotion, attention, and expectation.
Neuroscience
How Does Consciousness Work?
Consciousness remains an open problem. Leading theories describe it as global information broadcasting, integrated information, predictive modeling, or higher-order representation, but none has been decisively proven.
The science is pretty clear on this one
Does Sugar Cause Hyperactivity?
Multiple controlled studies have found no link between sugar and hyperactivity in children. The belief persists anyway. Here is why, and what is actually happening.