Input | Mechanism | Simple Action |
Light | Regulates the circadian rhythm through the suprachiasmatic nucleus, synchronising cortisol and melatonin cycles | Expose yourself to natural light for 5–10 minutes within 30 minutes of waking; in the evening, dim lights and use warm tones to signal rest |
Food | Maintains glucose stability and supports neurotransmitter balance for consistent energy | Eat within 60 minutes of waking; include protein, complex carbs, and magnesium-rich foods |
Silence | Reduces sensory load and resets dopaminergic pathways, improving focus and mood | Take 10 minutes daily without screens, notifications, or music — simply breathe or sit in stillness |
Time of Day | Anchor / Action | Target Response |
0–30 min after waking | Exposure to natural light and a glass of water | Stimulates natural cortisol awakening response and promotes alertness |
Within 60 min of waking | Balanced breakfast rich in protein and magnesium | Stabilises blood glucose and supports steady focus |
Every 90 min | Short 3-minute break (stretch, walk, breathe) | Resets dopamine cycle and prevents mental fatigue |
Midday | Step outside for real daylight and movement | Re-aligns circadian rhythm and restores focus |
2 h before sleep | Dim lights, avoid screens, lower temperature | Preserves melatonin production and prepares body for rest |
Before bed | 4-7-8 breathing or quiet reading | Activates parasympathetic nervous system for deep recovery |
Repeat five times.
Heart rate lowers, vagal tone rises, and cognitive control returns.
It’s the simplest measurable biohack — no device required.