Feeds

What fluids should you drink when it's hot?

Hot or cold?

SANS - Survey on application security programs

Also in this week's column:

What fluids should you drink when it's hot?

Asked by Andrew Wiseman of Cambridge, United Kingdom

The claim is that drinking a cold drink is better as the cold drink comes in contact with the tissues of the mouth, tongue, and throat thus soothing us, and it brings body temperature down since the body must warm up the drink to body temperature.

On the other hand, some say drinking a hot drink is better as the body has to use more energy to reduce the temperature of the drink to body temperature.

But this is contradicted by those who maintain that this body process only makes you hotter. People choose with their feet on this one (well, their mouths too).

People prefer cool drinks much more often than hot drinks during hot weather for sensory reasons rather than body temperature reasons. The same is true with hot drinks being more preferable during cold weather.

In fact, the temperature of the drink does not really matter unless a massive amount of liquid is being consumed or if the temperature of the liquid is extremely cold or extremely hot. If extremely cold, such an amount would probably make you sick and cause you to vomit and cramp. If extremely hot, it would burn your mouth.

The fact that fluid temperature, cooler or warmer, doesn't much matter is due to the much greater mass of the body compared to the drink. Cold or hot, the temperature of the drink is transformed to body temperature without much of a lowering of body temperature at all. The body's system of temperature regulation (homeostasis) is not so easily fooled.

The US Centres for Disease Control and Prevention in Atlanta stresses that during hot weather more fluids should be consumed. The CDC makes no recommendation as to the temperature of this fluid other than to "avoid very cold drinks" as these can cause stomach cramps.

The CDC says that besides water, salts, and minerals also need to be replaced in order to avoid heatstroke. It recommends avoiding caffeine, alcohol, and drinks with large amounts of sugar as these can "actually cause you to lose more body fluid".

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

Top three mobile application threats

More from The Register

next story
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
LOHAN's Punch and Judy show relaunches Thursday
Weather looking good for second pop at test flights
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Curiosity finds not-very-Australian-shaped rock on Mars
File under 'messianic pastries' and move on, people
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
Top Secret US payload launched into space successfully
Clandestine NRO spacecraft sets off on its unknown mission
New FEMTO-MOON sighted BIRTHING from Saturn's RING
Icy 'Peggy' looks to be leaving the outer rings
Melting permafrost switches to nasty, high-gear methane release
Result? 'Way more carbon being released into the atmosphere as methane'
prev story

Whitepapers

Designing a defence for mobile apps
In this whitepaper learn the various considerations for defending mobile applications; from the mobile application architecture itself to the myriad testing technologies needed to properly assess mobile applications risk.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.