The discussion revolves around the mechanisms that produce and regulate body heat, exploring various scientific perspectives on thermoregulation, the role of ATP, and related physiological processes. It includes inquiries about anecdotal claims regarding extreme temperature tolerance and the biological underpinnings of temperature regulation.
Participants express a range of views on the mechanisms of thermoregulation, with some agreeing on the role of certain physiological processes while others question the completeness of current understanding. The discussion remains unresolved regarding the extent of ATP's role and the validity of anecdotal claims about extreme temperature tolerance.
Limitations include varying levels of background knowledge among participants, differing interpretations of thermoregulation mechanisms, and the reliance on anecdotal evidence without scientific validation.
There is no scientific study showing how they do it because they can't.seazal said:I read some Yogi can sleep naked at snow. Is there any scientific studies how they did it?
I read that the indigenous peoples of Tierra del Fuego, maybe the Yamana people, who did not wear clothes, would roll their baby in the snow to warm them up. I am sure you will have experienced the rush of blood to the periphery when eventually you remove your hands from the snow.seazal said:I read some Yogi can sleep naked at snow. Is there any scientific studies how they did it? Also what exactly regulate our body temperature? How much is the role of ATP in it?
The set point temperature, Tset, is determined by a reference signal that is the constant FR of the temperature-insensitive neurons (I) (Figure 1.5) while the effector neurons receiving antagonistic excitatory and inhibitory signals from W and I function as an “error-comparator” for generating their adaptive neural output. The cold-sensitive neuron (C) is not cold-sensitive per se, but it is the inhibitory input from the warm-sensitive neuron (W) that provides it with cold-sensitivity. The thermosensitive neurons of POA also receive information on the body temperature from the spinal cord, via the brain stem. The set point temperature, Tset for effector neurons (w and c), is the temperature at which the excitatory and inhibitory inputs are balanced, and any change in the FR of W and I neurons will cause a shift in the Tset; when the FR increases, the Tset will be higher, and the contrary will happen when the FR decreases. Several internal and external stimuli that increase the FR of W and C neurons are known to lead to corresponding elevations of the Tset.
So , I don't think anyone actually answered your question. The mechanism of thermogenesis is associated with mitochondria. In the oxidative phosphorylation system, the electron flow from an oxidised NADH through complexes I-V to generate ATP is coupled to proton pumping from across the intermembrane space. These protons enter through complex V to generate your ATP. This mechanism also produces your mitochondrial membrane potential However some protons instead enter through the uncoupled proteins UPR at the mitochondrial membrane and the free energy released is heat. This produces your body temperature. So its the fact these protons don't go into making any ATP that makes body temperature. From this, metabolism and mitochondrial bioenergetics is linked to body temperature and mechanisms which control metabolism regulate body temperature. Its all interconnected.seazal said:I read some Yogi can sleep naked at snow. Is there any scientific studies how they did it? Also what exactly regulate our body temperature? How much is the role of ATP in it?