To quickly shift your sleep cycle (due to travel or schedule changes), you simply need to strategically manipulate sunlight exposure and food intake to reset your biological clock.

noli's read

This advice is based on the mechanism of the circadian rhythm, where morning light stimulates cortisol and advances the clock, while nutrition influences peripheral organ clocks. Chronobiological studies, notably research published in 'Cell' and 'Science', confirm that light is the most powerful 'zeitgeber' (time giver) for the suprachiasmatic nucleus. The suggested method for advancing or delaying wake times using light is robust and supported by numerous randomized controlled trials (RCTs). The nutritional aspect, while scientifically founded on the role of metabolism in the internal clock, is often simplified in wellness discourse: although intermittent fasting can help recalibrate the rhythm, clinical evidence on the isolated efficacy of diet to 'reset' a cycle remains less categorical than that related to light. This is not an instant magic solution, but a physiological process that requires consistency over several days. The approach is overall very solid, although individual effectiveness may vary according to genetics and regularity of application.

the sources

1. 1Blume C, Garbazza C, Spitschan M 2019
2. 2Brown TM et al. 2022
3. 3Yoshitake R, Park I, Ogata H, Omi N. 2023