Why Is It More Stressful In A Hot Room?

paka

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Apr 28, 2016
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There's this sensation I get in hot rooms that feels like warm waves going through my body. Is this stress?

It feels bad, is this my blood pressure rising? It feels like puffs of warm air.

I don't feel it in heat outdoors, only in uncomfortably hot or warm rooms.

It feels similar to the stress of being sleep deprived. That's not good, but life is stressful.
 
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I wonder if it's positive ions. They make it feel stressful.

The effects of negative air ions on various physiological functions during work in a hot environment
The effects of negative air-ions on human physical performance has been investigated. Twenty-one healthy males, 20–25 years old (X=23.6±2.6) were exposed to two 180-min rest and exercise sessions two weeks apart. The subjects were randomly assigned into either an experimental group (n=12) or to a control group (n=9). The experimental group performed the first session in neutral air conditions and the second one in air containing 1.36 to 1.90×105negative air ions and 1.40 to 1.66×102 positive air ions/ml. The control group performed both sessions under neutral air conditions. All sessions were held at Ta=40±1‡C and 25±5% RH. Each session included one hour of resting under the respective ionization conditions, followed by 3 30-min cycle ergometer work bouts, separated by 7-min rest periods. The mechanical work-load during the bicycle exercise was 1.64±0.6 W/kg BW. The experimental group showed a significant reduction with negative air-ions in heart rate (HR), in rectal temperature, and in the rating of perceived exertion (RPE), all when compared with their own neutral session. The control group showed no significant changes between the first and the second exposure. Although not statistically significant, being exposed to negative air-ions seems also to reduce total sweat rate and minute ventilation (VE), and to increase O2 pulse. It is suggested that under the conditions of this study negative air ions canimprove various cardiovascular and thermoregulatory functions as well as subjective feelings during physical effort. It is felt that such positive influences may be augmented by increasing the exposure time to negative ionized air and/or prolonging the stressful conditions.

Air-ionometry of hot, dry dessert winds(Sharav) and treatment with air ions of weather-sensitive subjects
Hot dry winds (Sharav) produce increased ionisation of the atmosphere, values for positive and negative ions going up from an average of 1, 000 per cm3 to 1, 500. There was almost always a slight preponderance of the positively-charged small ions. This increased air ionisation induces serotonin release in about one-quarter of the population with multiple complaints of a typical serotonin irritation syndrome. In 75% of 129 subjects suffering from serotonin ailments, the treatment with negative air ions (Ionotron) with an output of 3.5 × 105ions/(cm3 · sec) at 1 m distance produced prophylactic and therapeutic relief when the patients were kept in a room of up to 4 × 4 m size. These results were controlled by serotonin and 5-HIAA urinalysis.
 
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If it disrupts your homeostasis, you will have serotonin.
 

Constatine

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I wonder if it's positive ions. They make it feel stressful.

The effects of negative air ions on various physiological functions during work in a hot environment
The effects of negative air-ions on human physical performance has been investigated. Twenty-one healthy males, 20–25 years old (X=23.6±2.6) were exposed to two 180-min rest and exercise sessions two weeks apart. The subjects were randomly assigned into either an experimental group (n=12) or to a control group (n=9). The experimental group performed the first session in neutral air conditions and the second one in air containing 1.36 to 1.90×105negative air ions and 1.40 to 1.66×102 positive air ions/ml. The control group performed both sessions under neutral air conditions. All sessions were held at Ta=40±1‡C and 25±5% RH. Each session included one hour of resting under the respective ionization conditions, followed by 3 30-min cycle ergometer work bouts, separated by 7-min rest periods. The mechanical work-load during the bicycle exercise was 1.64±0.6 W/kg BW. The experimental group showed a significant reduction with negative air-ions in heart rate (HR), in rectal temperature, and in the rating of perceived exertion (RPE), all when compared with their own neutral session. The control group showed no significant changes between the first and the second exposure. Although not statistically significant, being exposed to negative air-ions seems also to reduce total sweat rate and minute ventilation (VE), and to increase O2 pulse. It is suggested that under the conditions of this study negative air ions canimprove various cardiovascular and thermoregulatory functions as well as subjective feelings during physical effort. It is felt that such positive influences may be augmented by increasing the exposure time to negative ionized air and/or prolonging the stressful conditions.

Air-ionometry of hot, dry dessert winds(Sharav) and treatment with air ions of weather-sensitive subjects
Hot dry winds (Sharav) produce increased ionisation of the atmosphere, values for positive and negative ions going up from an average of 1, 000 per cm3 to 1, 500. There was almost always a slight preponderance of the positively-charged small ions. This increased air ionisation induces serotonin release in about one-quarter of the population with multiple complaints of a typical serotonin irritation syndrome. In 75% of 129 subjects suffering from serotonin ailments, the treatment with negative air ions (Ionotron) with an output of 3.5 × 105ions/(cm3 · sec) at 1 m distance produced prophylactic and therapeutic relief when the patients were kept in a room of up to 4 × 4 m size. These results were controlled by serotonin and 5-HIAA urinalysis.
Thanks so much. This is very useful information for me.
 

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