There's tons of new research on mTBI coming out. We all should be aware that there can be confounding factors at time of injury, like hyperthermia. Not only is the concussed brain more vulnerable to insults, but so too is the victim of heat exhaustion.

I notice research shows that hypothermia (cooling) is therapeutic for TBI but this appears to apply to the severe form.

Can ANYONE comment on the riskiness of hot baths for mTBI sufferers. . what is the limiting temperature (eg,99.6?) Can the brain have a different temperature from the usual tongue measurement? Is the mTBI brain inflamed?

I don't know about the tongue measurement idea. Are you meaning an under the tongue thermometer ? Done properly under the tongue, it should be a reasonably accurate internal temperature.

But, if the hot tub causes one to sweat on their face, that would be a concern to me.

Seriously, another thing to worry about. I enjoy my hot showers.

I don't think a hot shower can heat up the body and head near as much as a hot tub. I enjoy a hot shower, too, and have never noticed an issue. When I have tried hot tubs, especially really hot tubs, I have notice some struggles after.

When I was on leave living with my parents I took relatively hot epsom salt baths pretty regularly, and usually felt better afterwards. They weren't super hot, but I'm sure were sometimes hot enough to make my face sweat a little. If I got uncomfortable I just added cold water.

You can definitely overheat yourself in a bath, unlike a shower. I use the thermometer so I don't really have to attend to things like sweating and the like. Baths, and hot tubs, can really be deceptive because you feel so good most of the time. People have gotten sick, even died. 104 degrees (F) is the critical danger point.

I just read a paper that found that mild TBI brains are actually COOLER than average, believed due to reduced metabolism. But I just wondered how high should I go, like 99.6 was the limit I've been using.

It's also well known that mTBI brains don't metabolize glucose as effectively. Perhaps this is why it's better to eat round the clock. Maybe mTBI people should have their glucose uptake measured, it could help pinpoint where they are in recovery etc.

I haven't had any issues using our hot tub (104 degrees). I usually stretch, do lunges and row in the hot tub for 20-30 minutes and always feel better afterwards. Never thought the high temp could be a problem with PCS.


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