There was a similar report earlier this summer from the Florida coast. Wouldn't it be deadly to swim in waters that warm? (I mean clearly it was for the dolphins, wondering about human ability to cool when perspiration is not possible)
Edit: hah
It’s so rare that the trainees never see any patients with it. The consultant asked me if I was OK for all the doctors there that night to have a look. They were fascinated but I was in a fair amount of pain!
I had to apply drops of what was effectively bleach to my eye for six months to ensure it went. Very painful. The diagnostic process was incredibly painful too. I can’t wear lenses anymore as I think my cornea is permanently damaged. Luckily my vision is back to normal but took nearly a year to recover.
Don’t sleep in your lenses. Don’t wear lenses in the hot tub!
I know this isn't a solution for everyone, but if a candidate for corrective surgery (PRK, LASEK, LASIK, etc), I highly recommend it. PRK was the best $3k I've ever spent. 20/15 vision for over a decade since surgery, no need to worry about glasses or contacts. Might be able to get away with LASIK or LASEK for faster recovery, I went with PRK and a bit longer recovery time because I live a life where head trauma is more likely than not (which can cause corneal flap complications).
Wanna add some context here?
That one is naegleria fowleri, which just loves warm, even hot water [1]. It's incredibly rare, but incredibly deadly.
> flesh eating bacteria
That is vibrio vulnificus [2] or a bunch of other bacteria which love brackish water [3].
[1] https://www.cdc.gov/parasites/naegleria/general.html
[2] https://www.cdc.gov/vibrio/wounds.html
[3] https://www.cdc.gov/groupastrep/diseases-public/necrotizing-...
Not that the rest of the ocean wasn't boiling hot at that time!
Normally (in summer) it's cooler out on the water. But on that day I had a kind of 'choking' feeling even on the middle of a lake. Like being in an elevator or bus packed with people & not enough ventilation.
It was easy enough to take a swim to cool down. But for these dolphins? The water not cooling them down. Swimming at all would raise their body temperature.
Out in the ocean they could have dived to deeper (cooler) waters. Or swim to cooler areas. But in the lake/river they were in? No escape from the hot water.
One can only imagine how desperate they must have felt right before they died.
anyway my bigger concern would be brain eating amoeba
edit: jinx
Your body can evaporatively cool in hot weather as long as it's dry out and the humidity (and hence wet bulb temperature) is low enough. In a pool, there's no evaporative cooling, and your skin surface will be the same temperature as the water. If it's too hot, it's too hot.
If your environment was exactly the standard body temperature, your body would actually get hotter until the temperature delta was enough to dissipate 80 watts, which would likely be too hot to survive.
The thermal resistivity depends on, among other things, the material you're surrounded by. That's why if you wear insulating clothes, you're comfortable at a lower environmental temperature (i.e. higher temperature delta).
To this you can add the effect of convection: if the air is moving then you don't accumulate a layer of warmer air around you, so the effective temperature delta is higher. And unless you're in a hot tub or air at 100% relative humidity, then some of the heat you produce goes into evaporating sweat. It takes energy to vaporize water, and this energy is locked into the water vapor until it condenses somewhere else.
Edit: to clarify, in the areas of the Amazon that I've been to (maybe the more remote areas), nobody swam. Most of the locals didn't even know how to swim despite living on the river. It may be different in other areas.
[1] https://en.wikipedia.org/wiki/Candiru_(fish)#Modern_cases
https://www.a3performance.com/blogs/a3-performance/do-you-sw...