The human heart beats with a rhythm so steady that most of us rarely stop to consider it. Each pulse carries oxygen, sustains life, and quietly reflects the intricate biological systems that keep us alive. However, this familiar rhythm requires a delicate electrical balance. When that balance is disturbed, the consequences can be sudden and severe. Among the most striking examples is Long QT syndrome, a condition that can lurk silently until it triggers a dangerous arrhythmia or even sudden cardiac death.

The human brain is often described as one of the most complex objects in the known universe. Yet even within this astonishing organ, a small curved structure deep in the temporal lobe has drawn extraordinary scientific attention for decades. This structure, the hippocampus, plays a central role in memory formation, learning, emotional processing, and spatial navigation. It is also one of the brain regions most vulnerable to disease.