circadian
Morning Light and Your Circadian Clock: A Simple, Evidence-Grounded Habit
Morning daylight is the strongest signal for your internal clock — and a consistent habit is one of the simplest levers for sleep, energy, and metabolic health.
circadian
circadian
How PER2 Gene Disruption May Undermine Skin Barrier Function Through Filaggrin Regulation
Recent dermatology reports link PER2 variants to atopic dermatitis severity. We explain the clock‑gene mechanism, cite circadian skin studies, and provide a simple 10‑day self‑experiment.
blue-light
Blue Light Before Bed Cuts Melatonin by Up to 60%: Mechanisms and a 10‑Day Self‑Experiment
Exposure to bright blue light at night can sharply lower melatonin. We break down why and give a short self‑study you can try.
circadian
Nighttime Blue Light, Cortisol Spikes, and Glucose Metabolism: A 7‑Day Self‑Experiment
A recent adolescent study links nighttime blue light to cortisol spikes and higher insulin. We outline a short self‑experiment to see if reducing evening blue light improves metabolic markers.
circadian
Timed Exercise and Meal Scheduling Boost Neuroplasticity-Driven Learning Compliance
A recent mouse study shows timed exercise reshapes circadian rhythms; we connect this to neuroplasticity and propose a self‑experiment to improve learning compliance.
sleep
How Sleep Phase Alignment Cuts Churn in N‑of‑1 Health Trials for Better Outcomes
A 2025 study found that syncing interventions to participants’ sleep windows cut trial dropout by 31%. Discover how circadian‑aligned protocols improve adherence in personal health experiments.