In a scientific context, "Night High 4" can refer to specific physiological peaks that occur during the night. Research into human thermoregulation, particularly in winter swimmers, has identified a "Night High" period—a distinct peak in skin temperature—that occurs typically between .
In some trading communities (e.g., for Forex, crypto, or futures), and "Night Low" refer to price extremes during a specific overnight session (e.g., Asian session for EUR/USD). Adding "4" could mean: night high 4
