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Related Concept Videos

Menopause01:28

Menopause

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Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
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Hormonal Regulation of the Menstrual Cycle01:22

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The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
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Thermoregulation01:26

Thermoregulation

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The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
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Increased Body Temperature01:25

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A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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Body Temperature01:25

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The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
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Body Temperature01:07

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Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
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Related Experiment Video

Updated: Jan 13, 2026

A Method to Study the Impact of Chemically-induced Ovarian Failure on Exercise Capacity and Cardiac Adaptation in Mice
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[Understanding menopause. Pathophysiology of hot flashes].

Florence Trémollières1

  • 1Centre de Ménopause, Hôpital Paule de Viguier, CHU Toulouse, Toulouse, France.

Medecine Sciences : M/S
|January 6, 2026
PubMed
Summary
This summary is machine-generated.

Menopause marks the end of menstruation due to lost ovarian activity. Estrogen decline causes hot flashes and impacts quality of life, with ongoing medicalization debates.

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Area of Science:

  • Reproductive Endocrinology
  • Women's Health
  • Neurobiology

Background:

  • Menopause, the permanent cessation of menstruation, has historical and cultural dimensions.
  • Estrogen deficiency post-menopause is linked to reduced quality of life and increased disease risk.
  • Vasomotor symptoms like hot flashes are key manifestations of estrogen deficiency.

Purpose of the Study:

  • To explore the pathophysiology of vasomotor symptoms during menopause.
  • To investigate the role of neuromediators in thermoregulation affected by estradiol decline.

Main Methods:

  • Review of historical and cultural perceptions of menopause.
  • Analysis of scientific literature on estrogen deficiency and its consequences.
  • Examination of recent advances in understanding thermoregulation and neuromediators.

Main Results:

  • Estrogen deficiency significantly impacts women's quality of life and health.
  • Vasomotor symptoms (hot flashes) are directly linked to decreased estradiol levels.
  • Neuromediators are implicated in thermoregulation changes, narrowing the thermoneutral zone.

Conclusions:

  • Menopause involves complex physiological changes beyond menstruation cessation.
  • Understanding the neurobiology of hot flashes is crucial for managing menopausal symptoms.
  • The medicalization of menopause remains a significant topic of discussion and research.