Feeds

What fluids should you drink when it's hot?

Hot or cold?

Security for virtualized datacentres

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

Internet Security Threat Report 2014

More from The Register

next story
SECRET U.S. 'SPACE WARPLANE' set to return from SPY MISSION
Robot minishuttle X-37B returns after almost 2 years in orbit
LOHAN crash lands on CNN
Overflies Die Welt en route to lively US news vid
America's super-secret X-37B plane returns to Earth after nearly TWO YEARS aloft
674 days in space for US Air Force's mystery orbital vehicle
'Utter killjoy Reg hacks have NEVER BEEN LAID', writes a fan
'Shuddit, smarty pants!' Some readers reacted badly to our last Doctor Who review ...
Experts brand LOHAN's squeaky-clean box
Phytosanitary treatment renders Vulture 2 crate fit for export
Carry On Cosmonaut: Willful Child is a poor taste Star Trek parody
Cringeworthy, crude and crass jokes abound in Steven Erikson’s sci-fi debut
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Win a year’s supply of chocolate
There is no techie angle to this competition so we're not going to pretend there is, but everyone loves chocolate so who cares.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.