Feeds

What is a Chinese restaurant headache?

Heady issues

New hybrid storage solutions

Also in this week's column:

What is a Chinese restaurant headache?

This is the unfortunate name for one of the symptoms of the allergic reaction to monosodium glutamate (MSG). MSG can induce a headache in people who are allergic to it.

The association with Chinese restaurants comes from the fact that MSG is often an ingredient in Chinese food. According to the Mayo Clinic in Rochester, Minnesota, such a headache typically begins within 30 minutes of consuming MSG and consists of dull and constant pain that may be at the front of both sides of the head.

The clinic adds: "The headache typically goes away within 72 hours after eating a food containing MSG."

What is a brain freeze?

Asked by Michael Friesen of Singapore

The "brain freeze" is another name for "the ice cream headache". The causes of this condition are eating ice cream quickly or gulping a cold drink too quickly. Inhaling very cold air can cause a "brain freeze" too.

This particular form of headache is intensely painful. The pain is in the form of sharp, stabbing pain in the forehead, temples, and around the eyes. The pain peaks at about 30 seconds or less after it begins. It is almost always gone in less than two minutes.

Cold material moving across your palate and the back of the throat is what brings on this type of headache. One possible mechanism is that this temporarily alters blood flow in the brain, causing the brief headache.

According to the Mayo Clinic, one of the few good things about an ice cream headache is that it's often gone in the time it would take you to say its medical name - "headache attributed to ingestion or inhalation of a cold stimulus". The clinic adds: "You may be more susceptible to these if you're prone to migraines."

Stephen Juan, Ph.D. is an anthropologist at the University of Sydney. Email your Odd Body questions to s.juan@edfac.usyd.edu.au

Secure remote control for conventional and virtual desktops

More from The Register

next story
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
Chelyabinsk-sized SURPRISE asteroid to skim Earth, satnav birds
Space rock appears out of nowhere, buzzes planet on Sunday
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
'Duck face' selfie in SPAAAACE: Rosetta's snap with bird comet
Probe prepares to make first landing on fast-moving rock
Square Kilometre Array reveals its 1.6TB-a-day storage and network rigs
Boolardy Engineering Test Array - aka BETA - is about to come out of Beta
LOHAN invites ENTIRE REG READERSHIP to New Mexico shindig
Well, those of you who back our Kickstarter tin-rattling...
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.