You tracked every trigger for months. The Migraine Tipping Line™ is why it never worked.
Your diary asked what you did before the pain. That is the wrong end of the migraine.
- A trigger diary starts at the pain, which is the late end of an attack
- Researchers describe a tipping point, where background factors push the brain close enough to the edge that a small nudge sets an attack off
- Early symptoms like a stiff neck or yawning can be the first phase of the attack, not a warning
The neurologist turns the screen toward you.
“Your MRI is completely normal.”
You nod. You have heard it before. You paid for the scan to be told nothing is wrong.
On the drive home the diary rides on the passenger seat. Eight months of it. Every meal. Every night’s sleep. The red wine you gave up in month two.
The migraines came anyway.
You did the work. The work was pointed at the wrong end of the migraine.
This page shows you the right end. It has a name, because a thing with a name is a thing you can finally see. The Migraine Tipping Line™.
What the Migraine Tipping Line™ is
Your brain has a point where it tips. Before that point, a bad night is just a bad night. Past it, the migraine begins.
Everyone has the same line. Yours is not weaker than anyone else’s. What differs is how easily your days push you toward it.
Take a Tuesday. You slept five hours. The meeting ran long, so lunch never happened. The lights in the grocery store were too bright. It is the week before your period.
None of that is a migraine. Together, it walks you up to the line. One more small thing and you are over it.
Researchers describe the same idea in their own words. A 2013 paper in PLoS One, by a team that included a neurologist from Leiden University Medical Centre, argued that an attack begins when background factors have pushed the brain close enough to the edge that even a small nudge sets it off. They called it a tipping point.
We call it the Migraine Tipping Line™. Same line for everyone. The difference is how much it takes to cross it, and some brains start the day already halfway there.
Why your diary never found it
A trigger diary asks one question. What did I do before the pain?
The pain is the late part of the story.
Dr. Rashmi Halker Singh, a neurologist at Mayo Clinic Arizona, writes for the American Migraine Foundation that some well-known triggers may be signs that an attack has already started. People can mistake the early symptoms for the cause.
Look at your own diary. The sugar craving. The stiff neck you blamed on your pillow. The cheese you swore off.
Those entries may not be causes. They may be the migraine, already underway.
So you cut the thing from your life. And the thing was never the cause.
What happens before the pain
A migraine attack has phases. The first is called the prodrome. The American Migraine Foundation says it can begin several hours or days before the aura or the headache.
You know the list. Yawning you cannot stop. A neck gone stiff. Light that is suddenly too bright. Food you crave out of nowhere. A word that will not come in the middle of a sentence.
You have called those warnings for years.
In 2025, a trial analysis in Nature Medicine, led by Dr. Peter Goadsby of King’s College London and UCLA, described these early symptoms as highly predictive of a headache to come. It also noted that brain imaging shows activity in the hypothalamus, a region that helps run sleep, appetite and hormones, during this early phase.
That trial tested a prescription drug. We cite it for what it says about the early phase, not for the drug.
What that changes
First, the pain is not where your migraine starts.
Second, a diary of what came before the pain may be a diary of the attack. Keep it. But add the early symptoms to it, with the time you noticed each one.
Third, the question that matters is no longer “what set it off today?” It is “how close was my brain to the line when the day began?”
The American Migraine Foundation also says that treatment in this early phase may stop or lessen an attack. Ask your doctor what that could look like for you.
Next Tuesday, your hand will go to the back of your neck again. This time you will know what you are looking at.
How close you start the day
Sleep. Meals. Stress. Hormone shifts. Light. The same pushes land on every brain. In some brains they add up faster.
That is the part Threshold works on. Threshold Daily™ pairs magnesium glycinate with the Below The Line Formula™, in one capsule a day, to give your brain more room under the line.
Questions
What is the Migraine Tipping Line™?
It is Threshold’s name for the point at which a brain tips into a migraine attack. Researchers describe a similar idea as a tipping point or a threshold.
Is it a medical diagnosis?
No. It is a way of describing how an attack starts. It is not a test result and it is not a number your doctor can measure.
Should I stop tracking my triggers?
No. Keep tracking sleep, meals and your cycle. Add the early symptoms, such as yawning, a stiff neck and light sensitivity, with the time you noticed each one. Bring the diary to your doctor.
What is the prodrome?
The first phase of a migraine attack, before any aura or headache. The American Migraine Foundation lists yawning, fatigue, food cravings, neck stiffness, light and sound sensitivity and trouble concentrating among its signs.
Does Threshold treat migraines?
No. Threshold Daily™ is a dietary supplement. It is not a treatment for any disease, and it is not a substitute for your doctor’s care.
Where to go next
The line is the same for everyone. What changed for you is how easily your days push you toward it, and a diary cannot show you that.
Threshold Daily™ comes with a 90-day money-back guarantee. If it is not for you, email us and we will refund you.
Try it for 90 days. If it isn’t for you, email us and we’ll refund you.At least see how it is built.
See how Threshold Daily™ gives you more room under the line →The pain was the late part.
Part 2What the research says
An attack begins when background factors have pushed the brain close enough to the edge that even a small nudge sets it off.
The authors called it a tipping point.
Read the sourceSome well-known triggers may be signs that an attack has already started.
People can mistake the early symptoms for the cause.
Read the sourceThe prodrome can begin several hours or days before the aura or headache.
Treatment in this phase may stop or lessen an attack, so ask your doctor what that could look like for you.
Read the sourceEarly symptoms were described as highly predictive of a headache to come.
Brain imaging shows activity in the hypothalamus, a region that helps run sleep, appetite and hormones, during this phase.
Read the sourceThe Nature Medicine trial tested a prescription drug. We cite it for what it says about the early phase, not for the drug.
Your turn
How many months did you track your triggers before you stopped?
And what did the diary miss? Tell us below. Other readers are asking the same question.
Tell us what your diary missedWe read every comment. Comments are reviewed before they appear, so please do not share personal medical details.
Content on this site is educational and is not medical advice.