Before electricity, humans slept twice a night; scientists explain why biphasic sleep made perfect sense
Before electricity, humans naturally slept in two phases, waking for an hour or two around midnight for quiet activities. This biphasic sleep pattern, influenced by natural light cycles and melatonin, was a common and restorative practice. Industrialization and artificial light disrupted this rhythm, leading to the single, continuous sleep pattern prevalent today.
Before electricity, humans naturally slept in two phases, waking for an hour or two around midnight for quiet activities. This biphasic sleep pattern, influenced by natural light cycles and melatonin, was a common and restorative practice. Industrialization and artificial light disrupted this rhythm, leading to the single, continuous sleep pattern prevalent today.
