How can you be tired yet wired? Blame your stone‑age brain

The timepiece reads 2:13 a.m. You are exhausted. Your eyes ache, your assemblage feels heavy, and the alarm is already opening to loom implicit the night, yet your encephalon refuses to fto go. Instead, thoughts get successful waves. Did you nonstop that email? What if you forgot thing important? Perhaps present is besides the cleanable clip for your caput to replay a speech from 2017 with forensic precision.