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GlossaryNorepinephrine (Noradrenaline)

neurotransmitter and hormone involved in stress response and arousal

Norepinephrine, also known as noradrenaline, is a neurotransmitter and hormone that plays a crucial role in the body's "fight or flight" response. It is produced in the adrenal glands and certain neurons, and it helps increase heart rate, blood pressure, and blood sugar levels, preparing the body to respond to stressful situations. In the brain, it is involved in attention, arousal, and mood regulation.

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research Recent Progress in Understanding the Effect of Sympathetic Nerves on Hair Follicle Growth

4 citations, August 2021 in “Frontiers in Cell and Developmental Biology”

Stress can cause hair loss by affecting nerve-related hair growth, and noradrenaline might help prevent this.

research External Light Activates Hair Follicle Stem Cells Through Eyes Via the ipRGC-SCN-Sympathetic Neural Circuit

April 2018 in “Journal of Investigative Dermatology”

Light can activate hair growth through a pathway from the eyes to hair follicles.

research How the Stress of Fight or Flight Turns Hair White

7 citations, January 2020 in “Nature”

Stress turns hair white by depleting color-giving cells in hair follicles through a specific neurotransmitter related to the body's stress response.

$Refractory Shock Following Ingestion of Topical Minoxidil Solution$

research Refractory Shock Following Ingestion of Topical Minoxidil Solution

5 citations, March 2016 in “Medical journal, Armed Forces India”

A man experienced life-threatening shock after swallowing hair growth solution.

research The Psychology of Gray Hair

2 citations, March 2020 in “Developmental cell”

Stress can cause hair to turn gray by depleting pigment-producing cells through the release of a stress hormone.

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community Quit vaping/smoking = 80% less loss

in Research/Science 235 upvotes 11 months ago

Quitting vaping significantly reduced hair loss for a user who was a heavy vaper and also taking finasteride. Some participants suggest nicotine's vasoconstrictive properties may worsen hair loss, while others share personal anecdotes of hair improvement after quitting smoking or vaping.

community Topical Finasteride reduced my DHT more than Oral Dutasteride

in Finasteride/Dutasteride 42 upvotes 2 years ago

Treatments for hair loss, including the experiences of topical finasteride and oral dutasteride. It also discusses Pyrilutamide, 0.025% topical concentration, Minoxidil, RU58841, and 1% finasteride gel dosage.