“People with migraine with aura are told to avoid possible triggers, which may lead them to avoid a wide range of suspected factors,” said study author Jes Olesen, MD, with the University of Copenhagen in Denmark and a Fellow of the American Academy of Neurology. “Yet the most commonly reported triggers are stress, bright light, emotional influences and physical effort, which can be difficult to avoid and potentially detrimental, if people avoid all physical activity.”
The study involved 27 people with migraine with aura who reported that bright or flickering light, vigorous exercise, or both, previously triggered an attack. The participants were then exposed to the triggers to see if they caused a headache episode.
Participants either went for an intense run or used an exercise bike for one hour, reaching at least 80 percent of their maximum heart rate. Participants also were exposed to bright, flashing or flickering lights for 30 to 40 minutes. After each session, the participants were monitored for about three hours and asked to report any migraine or migraine with aura symptoms.
The study found that 11 percent of participants reported a migraine with aura after being exposed to light or exercise. Another 11 percent of participants experienced migraines without aura. No participants developed migraine with aura after light exposure alone.
“Our study suggests that if a person is exposed to a suspected trigger for three months and does not have a migraine attack, they no longer have to worry about avoiding that trigger,” said Olesen.
Peter Goadsby, MD, PhD, with the University of California, San Francisco, and a member of the American Academy of Neurology, noted in an accompanying editorial that the study brings up several questions about migraine triggers. “Perhaps rather than triggers, these behaviors are a brain-driven response to the early phases of the migraine itself. Maybe people are driven to exercise as an early symptom and the association with light is simply the sensitivity to light that occurs with the attack itself?”
The study was supported by the University of Copenhagen, the Lundbeck Foundation Center for Neurovascular Signalling, the Danish Council for Independent Research-Medical Sciences, the Novo Nordisk Foundation and the Research Foundation of the Capital Region of Denmark.
To learn more about migraine, visit http://www.aan.com/patients.
The American Academy of Neurology, an association of more than 25,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer’s disease, stroke, migraine, multiple sclerosis, brain injury, Parkinson’s disease and epilepsy.
For more information about the American Academy of Neurology, visit http://www.aan.com
Rachel L. Seroka | American Academy of Neurology
Do microplastics harbour additional risks by colonization with harmful bacteria?
05.04.2018 | Leibniz-Institut für Ostseeforschung Warnemünde
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
23.04.2018 | Physics and Astronomy
23.04.2018 | Physics and Astronomy
23.04.2018 | Trade Fair News