Migraine: Causes & Pathophysiology

1. Neurological Mechanism — Cortical Spreading Depression (CSD)

• A slow wave of neuronal depolarization spreads across the cerebral cortex at 2–4 mm/min, typically starting in the occipital lobe.
• It disrupts ionic gradients (Na⁺, K⁺, Ca²⁺), causing a brief phase of hyperemia followed by oligemia (reduced blood flow).
• This produces the characteristic sequence of "positive" aura symptoms (e.g., scintillating scotoma) followed by "negative" symptoms (e.g., visual scotoma).
• Whether CSD directly triggers the headache phase by activating the trigeminocervical system remains debated, but animal models suggest it does trigger meningeal nociceptors.

2. Trigeminovascular Activation

• The trigeminal nerve sends axonal projections to intracranial blood vessels.
• When activated, these neurons release vasoactive neuropeptides:
  • Calcitonin gene-related peptide (CGRP)
  • Substance P
  • Nitric oxide
• These cause vasodilation of intracranial vessels and local neurogenic inflammation in the meninges.
• Nociceptive signals are relayed to the somatosensory cortex, producing the perception of pain.

3. The "Migraine Generator" — Brainstem & Hypothalamus

• Dorsal rostral pons: Functional MRI shows this region activates before the cortex and before symptom onset.
• Hypothalamus: Activates up to 24 hours before headache onset (accounting for premonitory symptoms — yawning, food cravings, mood changes, thirst, drowsiness). The hypothalamus also shows increased functional coupling with spinal trigeminal nuclei during the pre-headache phase.
• It is likely there is no single generator, but rather parallel dysfunction across multiple brain networks, which explains the variability between patients and between attacks.

4. Genetic Predisposition

• A positive family history is reported in 65–90% of migraine sufferers.
• Migraine is 3× more common in women than men.
• Up to 90% of migraineurs have a first-degree relative with migraine.
• Familial hemiplegic migraine (FHM) is a well-characterized monogenic form involving ion channel mutations (CACNA1A, ATP1A2, SCN1A).

5. Common Triggers

6. Serotonin Dysregulation

• Altered serotonin (5-HT) metabolism has been implicated — plasma serotonin levels drop during attacks.
• This may contribute to vasodilation and nociceptive sensitization.
• It is the basis for the efficacy of triptans (5-HT₁B/₁D agonists) as abortive agents.

Summary Diagram

Figure: Headache areas from different causes — Guyton and Hall Textbook of Medical Physiology

Quick Reference — Pathophysiological Cascade

Genetic susceptibility + Trigger
         ↓
Hypothalamic/brainstem dysregulation (premonitory phase)
         ↓
Cortical spreading depression (aura phase)
         ↓
Trigeminovascular activation → CGRP / Substance P release
         ↓
Neurogenic meningeal inflammation + vasodilation
         ↓
Central sensitization → Migraine headache

Recovering from & Preventing Your Monday Screen Migraines

1. Weekend screen withdrawal → Monday re-exposure: Your brain adapts to lower stimulation over the weekend, then overreacts to the sudden return of bright screen light, blue light, and visual strain on Monday.
2. Lifestyle shifts over the weekend: Changes in sleep schedule, caffeine intake, meal timing, or hydration between Saturday–Sunday vs. Monday are among the most common migraine triggers.

Part 1: What to Do During an Attack (Recovery)

Mild attack

• NSAIDs: Ibuprofen 400–600 mg, naproxen 500–825 mg, or aspirin 250–1000 mg taken at the first sign of pain. Early treatment dramatically improves outcomes.
• Acetaminophen (paracetamol): 650–1000 mg if NSAIDs are not suitable.
• Caffeine in small amounts (combined products like Excedrin Migraine = aspirin + acetaminophen + caffeine) can enhance analgesic effect — but avoid if caffeine fluctuation is one of your triggers.

Moderate to severe attack

• Triptans are first-line — these are prescription medications and the most effective class for moderate–severe migraine. Options include:
  • Sumatriptan (Imitrex) — tablet, nasal spray, or injection
  • Rizatriptan (Maxalt)
  • Zolmitriptan (Zomig)
  • Eletriptan (Relpax)
• Take a triptan as early as possible — waiting until pain is severe reduces effectiveness.
• Combination: naproxen + triptan together works better than either alone.

⚠️ Triptans require a prescription and are contraindicated in uncontrolled hypertension and ischemic heart disease.

Newer options (if triptans fail or are contraindicated)

• CGRP receptor antagonists (gepants): Rimegepant (75 mg) or ubrogepant (50–100 mg) — prescription-only, no vasoconstriction risk.
• Lasmiditan: Serotonin agonist without vasoconstrictive effects — but causes sedation (no driving for ~8 hrs after).

Immediate non-drug relief

• Dark, quiet room — screen migraine is worsened by photophobia (light sensitivity)
• Cold compress on forehead/temples
• Lie down and sleep if possible — sleep often ends a migraine attack
• Stay well hydrated

Part 2: Preventing the Monday Attack

Fix the Weekend → Monday Transition

Screen and Lighting Adjustments at Work

• Reduce screen brightness to match ambient room lighting — high contrast is a major trigger
• Enable night mode / warm colour temperature (blue light filter) — most OS have this built-in
• 20-20-20 rule: Every 20 minutes, look at something 20 feet away for 20 seconds
• Anti-glare screen filter or matte monitor
• FL-41 tinted glasses (rose/amber tint) — specifically designed for photophobia and migraine, evidence-supported
• Position screen at arm's length, slightly below eye level
• Avoid sitting directly under fluorescent lighting — flickering lights are a potent trigger

Preventive Medication (if attacks are ≥3 per month)

• Beta-blockers: Propranolol, metoprolol (first-line, well-studied)
• Topiramate or valproate (anti-epileptics used for migraine prevention)
• Tricyclic antidepressants: Amitriptyline (especially if sleep is also affected)
• CGRP monoclonal antibodies: Erenumab, fremanezumab, galcanezumab — monthly injections, newer and highly effective
• OnabotulinumtoxinA (Botox): For chronic migraine (≥15 headache days/month)

Non-Drug Prevention

• Biofeedback and relaxation training — proven effective, especially combined with medication (Kaplan & Sadock's Psychiatry)
• Regular aerobic exercise — reduces attack frequency over time
• Migraine diary — track your Monday attacks for 4–6 weeks noting sleep, coffee, meals, screen time; this pinpoints your personal trigger combination precisely

Your Most Likely Fix (Given Your Pattern)

1. Stabilize caffeine and sleep across the weekend — don't change your schedule dramatically
2. Hydrate well Sunday and Monday morning
3. Eat breakfast before starting work on Monday
4. Lower screen brightness and enable blue light filter Monday morning
5. Take an NSAID (ibuprofen 400 mg) at the very first hint of symptoms — don't wait
6. If attacks persist despite the above → see a doctor for a triptan prescription and/or preventive therapy

Latest evidence: A 2024 network meta-analysis in the BMJ (PMID 39293828) and a 2025 ACP systematic review (PMID 40096693) both confirm triptans and gepants as the most effective acute treatments for migraine, reinforcing the guidance above.

5 Natural Migraine Remedies (Evidence-Based)

1. 🧲 Magnesium

• Dose: 400–600 mg of magnesium oxide or magnesium citrate daily
• Evidence: A 2025 systematic review and meta-analysis of 22 RCTs found magnesium significantly reduced migraine attack frequency (−2.51 attacks), severity, and monthly migraine days compared to placebo. (PMID 39404918)
• Practical tip: Take at night — it also supports sleep quality. Magnesium citrate/glycinate are gentler on the stomach than oxide.
• Side effects: Loose stools at high doses — start low and increase gradually.

2. 💛 Riboflavin (Vitamin B2)

• Dose: 400 mg daily (much higher than the normal dietary intake)
• Evidence: The same 2025 meta-analysis confirmed riboflavin reduced migraine attack frequency by −1.34 attacks/month. (PMID 39404918)
• Practical tip: Urine turns bright yellow — this is harmless and just indicates the supplement is absorbed.
• Note: Effects take 2–3 months to build up; don't expect immediate results.

3. ⚡ CoQ10 (Coenzyme Q10)

• Dose: 100–300 mg daily
• Evidence: The 2025 meta-analysis found CoQ10 reduced migraine frequency (−1.73), severity (−1.35), and duration (−1.72 hours) — the broadest benefit of any supplement studied. (PMID 39404918)
• Practical tip: Take with a fatty meal as it is fat-soluble.
• Bonus for you: Particularly useful if your migraines are triggered by metabolic stress from screen work.

4. 🧘 Biofeedback & Relaxation Techniques

• Techniques: Thermal biofeedback, electromyographic (EMG) biofeedback, progressive muscle relaxation, mindfulness-based stress reduction
• Evidence: Endorsed in Goldman-Cecil Medicine as effective for migraine prophylaxis. Kaplan & Sadock's Psychiatry confirms that biofeedback and CBT produce "greater reductions in migraine for the intervention compared to no treatment."
• Practical tip: Several free and low-cost apps (e.g., Headspace, Calm, Muse) approximate relaxation training. Formal biofeedback with a therapist gives the strongest results.
• Especially relevant for you: Workplace stress compounding Monday screen exposure is a double trigger — this addresses both.

5. 🌿 Vitamin D

• Dose: 1000–2000 IU daily (get your 25-OH vitamin D level checked first — if deficient, higher doses may be needed under medical guidance)
• Evidence: The 2025 meta-analysis found Vitamin D reduced migraine frequency by −1.69 attacks/month and monthly migraine days by −2.41. (PMID 39404918)
• Practical tip: Especially useful if you work indoors and get limited sun exposure — a very common scenario for office workers.

Summary Table

These remedies work best as prevention — taken consistently every day, not just when a migraine hits. For your specific pattern (Monday screen migraines), combining magnesium + CoQ10 daily with Monday morning relaxation/breathing and a blue light filter is a practical starting stack. None of these have significant side effects at the doses listed, but check with your doctor before starting if you have any health conditions.