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Do your migraines seem to appear out of nowhere every summer?
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The heat may be sending you warning signs long before the pain begins, and knowing how
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to spot them could help you stay one step ahead.
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Welcome to Migraine Heroes, a podcast for people living with chronic migraines with
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years of pain, misunderstanding and lack of answers.
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I'm Diane Ducarme.
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I've helped more than a thousand people reduce the burden of migraines and feel more in control.
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My mission in life?
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To help a million people.
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Each episode brings you grounded insight into what your body might be asking for and what
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Just to keep you fully supported, this podcast is educational.
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For diagnosis or medication, always work with your doctor.
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Now take a breath, and let's dive in.
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In this episode, you will learn how to recognize 5 early warning signs that summer heat may
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be triggering your migraines before a full attack develops, why heat, dehydration and
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temperature changes affect the migraine brain differently than they affect other people,
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and simple strategies you can start using today to reduce your risk and enjoy summer
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with more confidence and fewer setbacks.
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Stay with me till the end, because at the end of this episode, you will have a simple
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at-home strategy to help you enjoy more of your summer.
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So if you've ever felt like everyone else enjoying a sunny summer day, while you're
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desperately searching for shade, for water, for relief from a pounding head, you're not
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Many people with migraines find summer particularly challenging.
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You may start questioning yourself, why can't my body handle the heat?
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Am I imagining this?
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Why does a simple walk outside leave me so exhausted and in pain?
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And the reality is that heat sensitivity is a very real phenomenon for many, many migraine
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sufferers, and science increasingly supports what you've likely experienced first-hand.
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So what's the connection between heat and migraines?
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So as we know, and we've discussed in many of these podcasts, migraine is a complex neurological
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condition that involves abnormal activation in pain pathways, changes in blood vessels,
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in inflammations, and alterations in how the brain processes sensory information.
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And research has now shown that weather-related factors, including temperature increases but
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also humidity changes and barometric pressure fluctuations, can trigger migraine attacks
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in susceptible individuals.
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A study published in Neurology, in the journal Neurology, found that higher ambient temperatures
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were associated with an increased risk of severe headaches.
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Even relatively small increases in temperature appeared to increase headache outcomes.
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The migraine brain appears to have difficulty maintaining internal stability when environmental
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conditions change rapidly.
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And scientists call this challenge maintaining homeostasis, the body's ability to keep internal
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conditions stable despite external changes.
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So what are five signs that this is you?
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Sign number one is you become excessively thirsty before migraine.
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So one of the earliest signs of heat-triggered migraines is this unusual thirst.
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During hot weather, your body loses water through sweat, and even mild dehydration can
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affect blood volume, your electrolyte balance, and your brain function.
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Research published in the Journal of Headache and Pain has shown that dehydration is a commonly
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reported migraine trigger, and reduced hydration may affect the meninges, the pain-sensitive
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coverings around the brain, and alter blood flow regulation.
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So if you notice yourself constantly reaching for water, feeling a dry mouth, or craving
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cold drinks more than usual, your body may already be struggling to compensate for heat
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Some of you may experience this pattern all year round, actually, not just in summer,
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And from a traditional transmedicine perspective, it can look very similar to summer heat migraine.
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So the body is already too warm, depleted, or reactive.
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So when real heat arrives, it may amplify what was already there.
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Now sign number two, fatigue hits you earlier than normal.
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Many people are going to assume that fatigue is simply part of a busy summer day.
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However, when you have unusual exhaustion, it can be one of the earliest stages of a
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Heat is going to force the body to work harder to regulate temperature.
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Blood is redirected toward the skin to facilitate cooling.
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And this process itself can increase cardiovascular workload and energy expenditure.
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And so for people with migraine, whose nervous systems are often already in a heightened
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state of sensitivity, this extra burden may contribute to a neurological overload.
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And if you suddenly feel drained after being outdoors, even when you've not done much physical
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activity, pay attention.
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Sign number three, dizziness or lightheadedness.
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Feeling dizzy when standing up too fast, walking outdoors, or moving between hot and cool environments
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can be another warning sign.
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And so heat exposure may lower blood pressure through vasodilation, meaning blood vessels
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widen to release that excess heat.
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And migraine sufferers frequently have altered autonomic nervous system regulation.
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So the autonomic nervous system controls blood pressure, heart rate, and temperature regulation.
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And so studies published in Cephalalgia have documented this autonomic dysfunction in many
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migraine patients, helping explain why heat can provoke the dizziness before head pain
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Sign number four is increased sensitivity to light.
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Now, summer naturally means brighter sunlight and longer daylight hours.
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The migraine brain is often highly sensitive to light.
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That's a symptom known as photophobia.
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And research published in Nature Reviews Neurology demonstrated that specific pathways connect
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light-sensitive cells to the retina directly to migraine pain networks.
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And so if bright sunlight suddenly feels unbearable, when you find yourself squinting, wearing sunglasses
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indoors like I was, or seeking dark spaces, your nervous system may already be moving
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toward a migraine state.
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Sign number four, brain fog and difficulty concentrating.
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Perhaps one of the most overlooked signs is cognitive slowing.
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You may struggle to find words, to focus on conversations, to remember simple tasks or
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You may even struggle to speak.
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Heat stress increases physiological strain, while migraine-related changes affect networks
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involved in attention and cognition.
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And researchers increasingly recognize cognitive symptoms as a significant component of migraine
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attacks, sometimes appearing hours before the pain itself.
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So why are some people more vulnerable?
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Not everyone develops migraines during hot weather.
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In the West, scientists believe vulnerability depends on a combination of genetics, nervous
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system sensitivity, hydration status, hormonal factors, or individual threshold for environmental
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The concept often described is that migraine triggers are accumulative.
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Heat alone may not cause an attack, but heat combined with dehydration, poor sleep, skipped
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meals, bright sunlight, and stress can push the brain beyond its threshold.
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Understanding this accumulative effect helps us explain why some summer days are fine while
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others trigger severe symptoms.
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And so in the Migraine Heroes app, actually, when you start and it asks you a couple of
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questions and helps you identify the underlying condition behind your migraine, so your most
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significant pattern, some of you are receiving a pattern called vital fluids depletion, and
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that refers exactly to that.
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And those people would typically, you know, would be correlated with summer heat migraines
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Indeed, in the early days of Migraine Heroes, we began noticing something quite
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curious on our dashboards during heat waves, you know, these specific heat waves that are
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referred to in the press in Europe, in the US.
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Migraine reports would often rise in those specific geographies, not for everyone, but
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for enough people that a pattern started to emerge and it became one of the many ways
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we learned to pay attention to the relationship between the environment and the migraine brain.
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Today, with climate change, heat waves are becoming more frequent, more intense, and
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sometimes arriving at completely unexpected times of the year.
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Understanding how heat affects your body is no longer just useful during summer, it's
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become an increasingly important life skill, especially for people living with migraines.
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Now let's go east.
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From a traditional Chinese medicine perspective, summer heat is not simply a temperature issue.
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It's considered a powerful environmental influence that affects the body's internal
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So, traditional Chinese medicine describes summer as the season of fire.
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And fire represents warmth, vitality, movement, expression, and connection.
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And when balanced, it supports joy, enthusiasm, and a sense of aliveness.
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But when fire becomes excessive, it may contribute to restlessness, agitation, headaches, disturbed
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sleep, and a feeling of being unable to settle.
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One traditional principle teaches when external heat enters, internal harmony may be disturbed.
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And part of the reason is that excessive heat is believed to gradually consume the body's
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nourishing fluids, that yin, those vital fluid depletion I was referring to before.
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Imagine a river during a drought.
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As the water level slowly falls, the river loses some of its depth and steadiness.
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And what was once calm and flowing becomes shallower and more easily disturbed.
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Rocks that once rested quietly beneath the surface begin to interrupt the current.
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And small obstacles start to create turbulence where previously there was none.
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And so the body can sometimes respond in similar ways.
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When its nourishing fluids become depleted, when through heat, stress, poor sleep, illness,
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or for years of giving out more that can be replenished, the nervous system may become
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more sensitive and reactive.
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And things that were once absorbed with ease can begin to feel overwhelming.
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Light seems brighter, noise feels louder, heat feels harder to tolerate.
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The margin for error becomes smaller.
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And this idea shares some similarities with what modern medicine describes through dehydration,
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alto-temperature regulation, and changes in nervous system sensitivity.
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You see they converge.
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Our Juvenile offers a related perspective through the concept of Pitta, the dosha associated
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with fire, heat, and transformation.
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During the warmer months, Pitta naturally increases.
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When it becomes excessive, people may experience symptoms such as headaches, irritability,
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heat intolerance, inflammation, sensitivity to sunlight, and excessive thirst.
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What is interesting is that both traditions encourage cooling practices, not only for
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the body, but also for the mind.
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And this matters because emotional stress can generate what traditional Chinese medicine
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describes as internal heat.
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Many people can notice that a stressful hot day affects them differently from a peaceful
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The temperature may be identical, but the experience is not.
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And so from an Eastern perspective, the body is constantly trying to maintain balance.
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A migraine may sometimes be understood as a signal that more cooling, more nourishment,
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rest, or restoration is needed.
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And for thousands of years, practitioners encouraged people to respect seasonal rhythms,
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slowing down during the hottest hours of the day, seeking shade, eating water-rich foods,
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staying well hydrated, avoiding unnecessary exertion when temperatures soar.
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Rather than fighting the season, they encouraged working with it.
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There's a beautiful traditional Chinese medicine principle that says, move with the
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season, and the season supports you.
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So for people living with migraines, this may mean accepting that summer sometimes asks
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for different habits than winter.
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More hydration, more rest, more cooling foods, more shade, more attention to early warning
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Not because your body is weak, but because your body is communicating.
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And the more gentle we learn to listen, the easier it becomes to work with it, rather than
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And so what can you do today in your home?
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Today you can create a simple summer migraine prevention kit at home.
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You can fill a reusable water bottle and keep it throughout your day with you.
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You add a few slices of cucumber or a few leaves of fresh mint in it to help your body
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cool down from inside.
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You prepare a pair of polarized sunglasses, a cooling towel, and a wide-brimmed hat near
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And if possible, you avoid direct outdoor activities during the hottest hours between
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the late morning and mid-afternoon, like the Italians do so well, la siesta.
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Most importantly, the moment you notice thirst, or fatigue, or dizziness, licensivity, or brain
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fog, treat those signs as early messages from your body, rather than waiting for a migraine
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Acting early is often far more effective than reacting later.
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And remember, every small step you take moves you closer to freedom.
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You are powerful, you are resilient, and you are not alone.
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Keep rising, migraine hero.
