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GlossaryPhysiological Stress

body's response to factors disrupting its normal balance

Physiological stress, also known as physical or biological stress, refers to the body's response to factors that disrupt its normal balance or homeostasis. This can include physical injuries, illnesses, extreme temperatures, or strenuous exercise. The body reacts by activating the stress response system, which involves the release of hormones like cortisol and adrenaline to help cope with the stressor.

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Research

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Examining the Acceptability of Providing Hair or Fingernail Samples as a Biomarker of Physiological Stress Among Older Adolescents

research Examining the acceptability of providing hair or fingernail samples as a biomarker of physiological stress among older adolescents.

April 2026 in “PsyArXiv (OSF Preprints)”

Nail sampling is feasible for adolescent health research, similar to hair sampling, but discomfort concerns need addressing.

research Influence of Religiosity on Adolescent Chronic Physiologic Stress

May 2018 in “The Knowledge Bank (The Ohio State University)”

Occasional religious service attendees had the lowest stress levels.

research Neurosteroidogenesis Is Required for the Physiological Response to Stress: Role of Neurosteroid-Sensitive GABA_AReceptors

248 citations , December 2011 in “Journal of Neuroscience”

Neurosteroids are crucial for stress response, and targeting specific receptors may help treat certain disorders.

research 518 Nutrient and stress sensing as novel physiological regulator of human hair pigmentation and greying: Role of mTORC1 activity

November 2022 in “Journal of Investigative Dermatology”

Blocking mTORC1 activity could increase hair pigmentation and potentially reverse greying.

Evaluation of Different Hair Characteristics and the Impact of Liver Abscess Presence on Stress-Related Physical and Physiological Parameters Associated with Well-Being in Beef Feedlot Steers

research Evaluation of different hair characteristics and the impact of liver abscess presence on stress related physical and physiological parameters associated with well-being in beef feedlot steers

January 2019

Liver abscesses don't affect stress in beef feedlot steers.

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Community Join

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community Circadian rhythm disruption and its potential impact on hair growth cycles

in Technology 7 upvotes 3 months ago

Poor sleep quality may affect hair growth cycles by disrupting the body's natural clock and stress hormones. The focus should be on improving sleep to support overall health, including hair growth, rather than relying solely on treatments like Minoxidil, finasteride, or RU58841.

community Hair loss after COVID or vaccination isn’t “made up” but it’s also not what TikTok makes it sound like

in Research/Science 2 upvotes 6 months ago

COVID and COVID vaccination can trigger hair loss, primarily telogen effluvium, due to stress and immune system activation. Proper diagnosis and addressing factors like nutrition and stress are crucial for recovery.

community Ray Peat: Testosterone Isn’t the Culprit, Prolactin and Cortisol Drive Hair Loss (2016)

in Research/Science 110 upvotes 9 months ago

Prolactin and cortisol are identified as key factors in hair loss, with stress hormones impacting hair shedding. Finasteride and minoxidil are effective treatments, while DHT's role and individual sensitivity are significant factors.

community Anyone else realize how many younger guys are balding?

in Chat 262 upvotes 1 year ago

Many younger men are experiencing hair loss due to genetics, diet, stress, and lifestyle changes. Treatments like finasteride and minoxidil are mentioned, with some users noting improvements.

community I cannot even tolerate Nutrafol

in Product 6 upvotes 9 months ago

The user experienced side effects from finasteride and Nutrafol, opting for non-hormonal treatments like minoxidil, exercise, and a healthy lifestyle. Others discussed using Dutasteride, Biotin, and minoxidil with varying success and side effects.

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Learn

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learn Stem Cell Factor

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Thymosin Beta 4

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