Headaches and migraines are no longer isolated medical conditions — they’re a global public health crisis affecting more than a third of the world’s population, according to a landmark study published in Cell Reports Medicine.
Led by neurology experts from La Trobe University and Western Health, the international study found that stress, sedentary behavior, caffeine, alcohol, and poor sleep quality are among the biggest triggers driving the global rise in headache disorders. And the problem is growing — not shrinking.
The overlooked epidemic
The analysis, based on data from the Global Burden of Diseases, Injuries and Risk Factors Study (GBD) across 204 countries, shows that 2.8 billion people suffer from migraines or headaches. Despite decades of research, funding and awareness remain strikingly low.
COVID-19 made it worse
The researchers found that both SARS-CoV-2 infection and vaccination contributed to acute and chronic headache cases, worsening symptoms in patients with pre-existing migraines. Women aged 30–44 years, particularly in high-income countries, remain disproportionately affected.
A call for global recognition
Lead researcher Professor Tissa Wijeratne stressed that the burden of headaches cannot be ignored:
“We must prioritize headache disorders in global health agendas. They cause disability, lost productivity, and emotional suffering on an enormous scale.”
Experts warn that the continued reliance on over-the-counter painkillers and the limited access to professional headache management will keep prevalence rates high. Meanwhile, modern habits — from stress to screen fatigue — are ensuring the crisis persists.
As the Step4Migraine Walk takes place in Melbourne’s Treasury Gardens, the study serves as a stark reminder: what we call “just a headache” may actually be one of the world’s most underestimated chronic conditions.
