Rutinas de sueño y sus consecuencias #shorts
In this short Spanish dialogue, Speaker A asks how to start a better sleep routine. Speaker B explains that the key is to eliminate blue light after sunset. He argues that exposing the body to blue light in the evening sends a false “daytime” signal, disrupting the circadian system. Instead, one should block blue light and use only orange or red lighting at night. He frames this advice evolutionarily: for most of human history we were only exposed to firelight, which is orange/red, and our brains are wired to associate that spectrum with nighttime. Modern electric lighting, introduced only about 200 years ago by Edison, replaced firelight with blue‑rich light, which now interferes with sleep. The recommendation is to switch to orange/red light sources after dark to restore a natural sleep cue.
