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August 18.2025

2 Minutes Read

The Hidden Truth Behind Hot Flushes: What Happens During Menopause?

Middle-aged woman experiencing hot flushes during menopause in nature.

Understanding Hot Flushes: The Science Behind the Symptom

Menopause brings a host of changes for women, with hot flushes being one of the most persistent signs. These sudden waves of heat can often leave women feeling confused and frustrated. Dr. Peter Lehrke, a respected biochemist, helps unravel the complex physiological processes at play during these episodes.

Why Do Hot Flushes Occur?

The journey of a hot flush begins deep within the body, specifically with the ovaries. During a woman's reproductive years, her ovaries are hard at work, producing estrogen and progesterone. However, as women transition into perimenopause, this hormonal production begins to decline significantly.

This decline in estrogen doesn’t just affect the ovaries; it creates a ripple effect that alters the body's internal ecosystem. A crucial player in this process is the hypothalamus, the brain’s thermostat. Falling estrogen levels confound the hypothalamus, causing it to perceive an increase in body temperature, even when the body isn't truly warm.

The Chain Reaction in the Body

When the hypothalamus senses this false overheating, it triggers a series of reactions. The nervous system responds by flooding the body with stress hormones, creating feelings of tension and anxiety. This reactive surge then mobilizes the cardiovascular system, including a faster heartbeat and dilated blood vessels to disperse heat from the skin. As a result, flushed cheeks and sweaty skin become common visual trademarks of hot flushes.

The Aftermath: Feeling Cold After Heat

Once the cool-down mechanisms kick in, sweating occurs to regulate temperature, often followed by an alarming chill. This cycle—heat followed by cold—can leave women feeling drained and unsettled. It’s a whirlwind experience, but understanding these bodily changes can empower women navigating this transitional phase.

Supporting Women Through Menopause

Knowing the 'why' behind hot flushes can make coping with them more manageable. Women experiencing these symptoms can explore various relief options, including lifestyle changes, natural remedies, and hormonal treatments, tailored to their individual needs.

By gaining insight into the underlying processes, women can take proactive steps to alleviate discomfort during this natural life transition.

Hormone Health & HRT

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The Hidden Truth Behind Hot Flushes: What Happens During Menopause?

Understanding Hot Flushes: The Science Behind the Symptom

Why Do Hot Flushes Occur?

The Chain Reaction in the Body

The Aftermath: Feeling Cold After Heat

Supporting Women Through Menopause

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