Brain freeze: Why ice cream makes some scream

#BrainFreeze,#Popsicle #Slush #IceCream

Most people have likely experienced brain freeze — the debilitating, instantaneous pain in the temples after eating something frozen — but researchers didn't really understand what causes it, until now.

Previous studies have found that migraine sufferers are actually more likely to get brain freeze than people who don't get migraines. Because of this, the researchers thought the two might share some kind of common mechanism or cause, so they decided to use brain freeze to study migraines.

Headaches like migraines are difficult to study because they are unpredictable. Researchers aren't able to monitor a whole one from start to finish in the lab. They can give drugs to induce migraines, but those can also have side effects that interfere with the results. Brain freeze can quickly and easily be used to start a headache in the lab, and it also ends quickly, which makes monitoring the entire event easy.

The researchers brought on brain freeze in the lab by having 13 healthy volunteers sip ice water through a straw right up against the roof of their mouth. The volunteers raised their hands when they felt the familiar brain freeze come on, and raised them again once it disappeared.

The researchers monitored the blood flow through their brains using an ultrasound-like process on the skull. They saw that increased blood flow to the brain through a blood vessel called the anterior cerebral artery, which is located in the middle of the brain behind the eyes. This increase in flow and resulting increase in size in this artery brought on the pain associated with brain freeze.

When the artery constricts, reining in the response to this increased flow, the pain disappears. The dilation, then quick constriction, of this blood vessel may be a type of self-defense for the brain, the researchers suggested. "The brain is one of the relatively important organs in the body, and it needs to be working all the time," study researcher Jorge Serrador, of Harvard Medical School, said in a statement. "It's fairly sensitive to temperature, so vasodilation [the widening of the blood vessels ] might be moving warm blood inside tissue to make sure the brain stays warm."

This influx of blood can't be cleared as quickly as it is coming in during the brain freeze, so it could raise the pressure inside the skull and induce pain that way. As the pressure and temperature in the brain rise, the blood vessel constricts, reducing pressure in the brain before it reaches dangerous levels.

If other headaches work in the same way, drugs that stop these blood vessels from opening up, or that could make this blood vessel constrict could help treat them, the researchers say.

By Jennifer Walsh - MSMBC LiveScience

Comments

Beyond the Cliff | Laura van Dernoot Lipsky -Watch this Video, if you are in a profession that is about caring for others.

#LauravanDernootLipsky # TraumaStewardship #V icarioustrauma #Self-Care Laura van Dernoot Lipsky is the founder and director of the Trauma Stewardship Institute and author of T rauma Stewardship: An Everyday Guide to Caring for Self While Caring for Others. She has worked directly with trauma survivors for 28 years, including survivors of Laura van Dernoot Lipsky , and acute trauma of all kinds, and natural disasters. Laura has been active in community organizing and movements for social and environmental justice and has taught on issues surrounding systematic oppression and liberation theory. Trauma Stewardship: How do we reduce clinician burnout? What helps people develop resiliency so that the important work they do in the world isn’t hindered by vicarious trauma and their own lack of self-care? The cumulative aspect of ongoing exposure to suffering and trauma is largely ignored in health care, criminal justice, and other fields. Laura van Dernoot Lips...

Can Coffee Cut a Woman's Stroke Risk?

#Stroke #Coffee #WomensHealth #HealthNews #Research A Swedish study shows even a cup a day reduces the risk; Experts say more proof needed Women who have at least one cup of coffee -- or even five cups -- daily may be reducing their risk of stroke by as much as 25 percent, new Swedish research shows. And women who don't drink coffee at all may actually be increasing their risk for stroke, the researchers noted. However, the researchers added, these findings are preliminary and should not cause any change in coffee-drinking habits. "Results from our study in women showed that consumption of 1 to 5 cups of coffee per day was associated with a 22 to 25 percent lower risk of stroke, compared with consumption of less than 1 cup a day," said lead researchers Susanna Larsson, from the National Institute of Environmental Medicine at the Karolinska Institute in Stockholm. "Even small amounts of coffee may reduce the risk of stroke," she added. ...

Little, the upcoming comedy movie directed by Tina Gordon [Trailer]

#ReginaHall #IssaRae #MarsaiMartin #JustinHartley #ToneBell #RachelDratch #Little Girls Trip's Regina Hall and Black-ish's Marsai Martin both star as Jordan Sanders - Hall as the take-no-prisoners tech mogul adult version of Jordan and Martin as the 13-year-old version of her who wakes up in her adult self's penthouse just before a do-or-die presentation. Insecure's Issa Rae plays Jordan's long-suffering assistant April, the only one in on the secret that her daily tormentor is now trapped in an awkward tween body just as everything is on the line. Little is an irreverent new comedy about the price of success, the power of sisterhood and having a second chance to grow up - and glow up - right.

Kate Bush's "50 Words for Snow"

#50WordsforSnow #KateBush #RunningUpThatHill From up on that hill, perhaps wearing a capelet over a flowy Victorian gown, Kate Bush has been regarded as a spirit saint of fearless individuality by a generation of musicians such as Björk and Tori Amos as well as younger mystics-in-training such as Florence Welch, Leslie Feist and Bat for Lashes. All that adoration in the ether must’ve stirred the reclusive British singer-songwriter to create not just one album this year — “Director’s Cut,” a reinterpretation of songs from “The Sensual World” and “The Red Shoes” — but also a second one, “50 Words for Snow,” an art-song cycle that veers from delicate to blustery but always with a sheen of elegance. Bush grounds her songs in the permafrost of winter, with her piano work sounding like the first stirrings after a cold snap. “Among Angels” could be the soundtrack for plants stretching toward the new spring sun, but as much as it’s connected to the natural world, the s...

Triple5Light Therapy

Search This Blog