Gravity is an invisible force that silently works against you every night, interrupting sleep by pulling your body out of alignment when your posture is poor.

Sleeping on your stomach is the worst position because gravity presses on your organs and twists your neck all night, keeping your fight-or-flight system active.

Studies show that six and a half hours is the amount of sleep associated with the lowest mortality rate, as long as the sleep quality is very high.

Unless it's very bright, red light doesn't count as 'light' to your body's internal clock, so it won't disrupt your circadian rhythm or melatonin production.

A tiny cluster of neurons behind your eyes, the suprachiasmatic nucleus (SCN), acts as your body's master clock, and light exposure is the main way to control it.

Even five seconds of bright light at night can instantly change your biochemistry and shut down your brain's production of melatonin.

A study published in a medical journal showed that TrueDark glasses shift your brain waves towards a calm state within 15 minutes of wearing them in the evening.

Aligning your last bite of food with the setting sun calms digestion, stabilizes biochemistry, and signals to your body that it's time to prepare for rest.

You don't need to 'fix' your sleep; you just need to stop breaking it by removing modern disruptions like artificial light, late-night eating, and poor posture.

As melatonin naturally rises in the evening, your body becomes more insulin resistant, which is why eating carbohydrates close to bedtime is so disruptive.