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  2. Hunting reaction - Wikipedia

    en.wikipedia.org/wiki/Hunting_reaction

    The term Lewis reaction is used too, named after Thomas Lewis, who first described the effect in 1930. [1] Vasoconstriction occurs first to reduce heat loss, but also results in strong cooling of the extremities. Approximately five to ten minutes after the start of cold exposure, the blood vessels in the extremities will suddenly vasodilate.

  3. Vasodilation - Wikipedia

    en.wikipedia.org/wiki/Vasodilation

    Approximately five to ten minutes after the start of the cold exposure of the hand, the blood vessels in the finger tips will suddenly vasodilate. This is probably caused by a sudden decrease in the release of neurotransmitters from the sympathetic nerves to the muscular coat of the arteriovenous anastomoses due to local cold. The CIVD ...

  4. Dopamine transporter - Wikipedia

    en.wikipedia.org/wiki/Dopamine_transporter

    The dopamine transporter (DAT, also sodium-dependent dopamine transporter) is a membrane-spanning protein coded for in humans by the SLC6A3 gene (also known as DAT1), that pumps the neurotransmitter dopamine out of the synaptic cleft back into cytosol. In the cytosol, other transporters sequester the dopamine into vesicles for storage and later ...

  5. Dopamine released during exercise linked to improved ... - AOL

    www.aol.com/dopamine-released-during-exercise...

    Pleasure hormone dopamine is a key cause of improved reaction times following exercise, according to new research. Scientists at the University of Portsmouth say the findings could lead to new ...

  6. Are cold plunges safe? What you need to know about the health ...

    www.aol.com/cold-plunges-safe-know-health...

    Cold immersion therapy — usually in water less than 60 degrees Fahrenheit — causes your blood vessels to constrict and then dilate, enhancing circulation.It’s also shown benefits for ...

  7. 5-HT1A receptor - Wikipedia

    en.wikipedia.org/wiki/5-HT1A_receptor

    These effects are the result of activation of 5-HT 1A receptors within the rostral ventrolateral medulla. [10] The sympatholytic antihypertensive drug urapidil is an α 1-adrenergic receptor antagonist and 5-HT 1A receptor agonist, and it has been demonstrated that the latter property contributes to its overall therapeutic effects.

  8. Are cold plunges and saunas safe for kids? What parents need ...

    www.aol.com/finance/cold-plunges-saunas-safe...

    Sauna bathing may increase feel-good brain chemicals such as dopamine and serotonin, ... studies have looked only at the effects of sauna in adults. ... cold exposure and immersion can trigger a ...

  9. Goose bumps - Wikipedia

    en.wikipedia.org/wiki/Goose_bumps

    Goose bumps can be experienced in the presence of flash-cold temperatures, for example being in a cold environment, and the skin being able to re-balance its surface temperature quickly. The stimulus of cold surroundings causes the tiny muscles (arrector pili muscle) attached to each hair follicle to contract. This contraction causes the hair ...