What protocol do you follow to minimize jet lag, avoid drops in HRV, and improve sleep after traveling to a different time zone? @Anthony Castore

This question keeps me worried all the time. Alex Kikel mentioned it multiple times. That through receptors crass-talk it can do it. What's your personal opinion on it? Is it possible technically ? Do you know someone who suffered from gyno caused by SLU ?

Sleep is not the absence of wakefulness. It is an active neurological state that requires inhibition. For sleep to happen, large parts of the brain must be told very clearly that they are no longer needed. This is where many adults fail, not because they are stressed, but because their nervous systems no longer know how to downshift. Children move easily between states. They can cry hard and then sleep deeply minutes later. They can play intensely and then collapse into rest. Their nervous systems are elastic. Stress rises and resolves. Adults accumulate stress without resolution. The system stays partially activated all the time. The nervous system has two dominant modes. One prioritizes action, vigilance, and problem solving. The other prioritizes repair, digestion, and sleep. These states are not moral choices. They are physiological settings. You cannot think your way from one to the other. Many adults spend the entire day in a low-grade threat response. Not panic, not fear, but constant readiness. Deadlines, notifications, financial pressure, social comparison, responsibility for outcomes, and the feeling of being behind all feed the same circuitry. The nervous system does not differentiate between emotional stress and physical danger. It responds to load. By the time night arrives, the system is tired but not safe. That distinction matters. Tired systems sleep. Vigilant systems do not. This is why people can feel exhausted yet wired. Energy is low, but inhibition is missing. The brain keeps scanning. Sleep requires letting go of control. Vigilance resists that. Children do not carry unclosed loops. Their day ends when it ends. Adults carry unfinished conversations, unresolved problems, and future planning into bed. The brain treats these as tasks that still require monitoring. Monitoring keeps circuits active. One of the biggest blind spots in sleep conversations is trauma, not just major trauma, but cumulative micro-trauma. Years of pushing through fatigue. Years of ignoring hunger. Years of overriding discomfort. Years of living against natural rhythms. The nervous system learns that rest is not reliable.

Light is not just something you see. Light is information. It tells every cell in your body what time it is, what hormones to release, what genes to express, and what state to prepare for. Before food, before supplements, before sleep routines, light is the primary organizer of human biology. Children live in a world where light signals still make sense. Adults do not. A child’s day usually begins with natural light or at least a gradual increase in brightness. Their eyes receive a clear signal that morning has arrived. Cortisol rises smoothly. Body temperature climbs. Appetite turns on. Movement follows. As the day goes on, light exposure naturally peaks and then fades. By evening, darkness arrives without negotiation. The signal is clean. The system knows what to do. Adults live in a different reality. They wake up in darkness. They turn on overhead lights that mimic noon at 6am. They stare into phones inches from their face. They spend most of the day indoors under artificial lighting that never changes. Then, late at night, when biology expects darkness, they flood their eyes with bright screens again. From the brain’s perspective, this is chaos. Circadian rhythm is often described like a clock. That metaphor is misleading. A clock keeps time even if the environment is wrong. Circadian rhythm is more like a conductor leading an orchestra. If the conductor is confused, the musicians don’t just play late. They play out of sync. Light is the conductor. The master clock in the brain, the suprachiasmatic nucleus, does not care what time your phone says it is. It cares what your eyes report. Specialized cells in the retina measure brightness, wavelength, and timing. They send that information directly to the brain’s timing center. From there, signals cascade to hormones, metabolism, digestion, immune function, body temperature, and sleep-wake cycles. This system evolved under one condition only. Bright light during the day. Darkness at night. There was no evolution for indoor lighting, night screens, or social schedules that shift daily. Biology assumes consistency. Modern life provides variability.

I'm convinced about the benefits of BFR and CO2 therapies and I own both devices. However, for someone who isn't an athlete and just wants to have physical and mental energy throughout the day, is EWOT the best addition or a waste of money? I searched for EWOT here and it doesn't seem like people are talking about it.