Quick Answer
Hot flushes and night sweats are common symptoms during the menopause transition. As oestrogen levels change, the brain’s temperature-regulation system can become more sensitive, causing sudden feelings of heat, sweating, flushing, chills and sometimes a racing heartbeat. These episodes are known as vasomotor symptoms. 1 2
They can happen during the day or during sleep. If hot flushes or night sweats are disrupting your sleep, work or quality of life, you do not simply have to put up with them. Lifestyle measures and medical treatments can help, depending on your symptoms and individual health profile. 1 6
Introduction
One minute you’re perfectly comfortable.
The next, your face, neck and chest suddenly feel as though someone has turned up the thermostat. You may start sweating, your heart may beat faster, and just as quickly, the episode passes.
Then it happens again at 2 a.m.
If this sounds familiar, you’re probably experiencing a hot flush. When it happens during sleep and leaves your clothes or bedding damp, it is commonly called a night sweat. Together, they are known medically as vasomotor symptoms. 1 2
They are among the most characteristic symptoms of the menopause transition—but they are not something you simply have to “put up with.”
From the Doctor’s Desk
Hot flushes and night sweats are among the most common symptoms women experience during the menopause transition. They can range from a mild sensation of warmth to episodes that are intense enough to wake you from sleep or interrupt your daily activities.
The important thing is not to assume that every episode of sweating is automatically due to menopause. If symptoms are new, unusually severe, persistent or accompanied by other concerning symptoms, they deserve a medical evaluation. For women whose symptoms are affecting sleep or quality of life, there are effective treatment options, but the safest choice depends on individual health history, risks and preferences.
What exactly is a hot flush?
A hot flush is a sudden sensation of heat, usually beginning around the face, neck or upper chest and sometimes spreading through the body. Sweating, flushing, chills, anxiety or a racing heartbeat can accompany it. Most episodes last around 1–5 minutes, although the experience varies between women. 1 2
A night sweat is essentially the same phenomenon occurring during sleep.
And yes, you can wake up drenched even though the room isn’t particularly warm.
Why does menopause make you feel suddenly hot?
This is where hormones meet your brain’s thermostat.
As ovarian oestrogen production becomes more variable and eventually declines during the menopause transition, changes occur in the brain’s temperature-regulation system. The thermoneutral zone—the range in which your body doesn’t need to actively cool or warm itself—appears to become narrower. 3
That means a relatively small change in core temperature can trigger an exaggerated cooling response.
Your blood vessels widen.
You sweat.
Your skin feels hot.
And then, once the body has cooled, you may experience chills or shivering.
So the flush isn’t simply your body “making too much heat.”
It is more like your internal thermostat becoming too sensitive to small temperature changes. 3
Why are night sweats so exhausting?
Imagine being woken several times a night because your body suddenly becomes intensely hot and sweaty.
Even if you fall back asleep quickly, repeated disruptions can leave you tired the next morning.
Hot flushes and night sweats can therefore affect:
- Sleep quality
- Energy
- Concentration
- Mood
- Work and daily activities
The impact is not just physical. Persistent vasomotor symptoms can significantly affect quality of life. 1 2
And this can become especially frustrating when everyone around you is sleeping peacefully while you’re changing your nightclothes at 3 a.m.
How common are they?
Hot flushes are very common, although the experience differs considerably across populations.
The Menopause Society estimates that they affect up to 80% of women at some point during the menopause transition. 1
Indian women experience them too, although the prevalence reported in Indian studies varies.
For example, an urban Indian study involving 717 peri- and postmenopausal women aged 45–55 found that 34% reported hot flushes and/or night sweats. 4
A more recent Indian study of 1,479 women aged 40–60 reported hot flushes in 37.6% of participants. 5
These differences are a useful reminder: there is no single “normal” menopause experience.
Some women have occasional mild warmth.
Others experience several disruptive episodes every day.
Both experiences are real.
Can anything trigger a hot flush?
Some women notice that particular situations make their symptoms worse.
Possible triggers include:
- Hot weather or warm rooms
- Spicy foods
- Hot drinks
- Alcohol
- Stress
- Smoking
- Tight or heavy clothing
But triggers are highly individual.
You don’t need to create a long list of foods you are “forbidden” to eat. If you notice a reliable pattern, make a practical adjustment. If you don’t, don’t unnecessarily restrict your life.
Keeping your bedroom cool, wearing breathable layers and having water nearby at night can also make episodes easier to manage.
Do you need treatment?
Not necessarily.
If your flushes are mild and don’t bother you, treatment may not be needed.
But if they are disrupting sleep, work, relationships or your quality of life, you deserve a treatment conversation.
Hormone therapy is the most effective treatment for menopausal vasomotor symptoms for appropriate candidates. 1 6
It isn’t suitable for everyone, however. Your doctor will consider your age, symptoms, medical history, cardiovascular and clotting risks, cancer history and other individual factors before recommending it. 6
There are also non-hormonal options.
These can include menopause-specific cognitive behavioural therapy and certain prescription medicines. NICE also recommends considering fezolinetant for moderate-to-severe vasomotor symptoms when HRT is unsuitable. 6 7
The right treatment is therefore not:
“What is the best menopause medicine?”
It is: “What is the safest and most effective option for me?”
When should you get checked?
Not every episode of sweating in midlife is caused by menopause.
Speak with your doctor if symptoms are new, unusual, severe or difficult to explain—particularly if you have fever, unexplained weight loss, persistent palpitations or other symptoms suggesting another medical condition.
Thyroid disorders, infections and some medicines can also cause sweating or heat intolerance. 2
And if you’re younger than 45 and experiencing significant menopausal symptoms or major menstrual changes, it’s particularly worth discussing them with a clinician.
You don’t have to suffer silently
Hot flushes and night sweats are common.
They are not imaginary, not a sign that you’re “weak,” and not something you necessarily have to endure for years without help.
Some women need no treatment.
Some benefit from lifestyle changes.
Others need medical treatment.
There is no prize for suffering through the night without asking for help.
If menopause symptoms are interfering with your life, bring them to the table.
Key Takeaways
- Hot flushes and night sweats are vasomotor symptoms associated with menopause. 1
- They occur partly because changing oestrogen levels affect the brain’s temperature-regulation system. 3
- A hot flush commonly causes sudden heat, sweating and sometimes palpitations, anxiety or chills. 1 2
- Night sweats can repeatedly disrupt sleep and affect quality of life. 1
- Symptoms vary greatly between women, including among Indian women. 4 5
- Lifestyle adjustments may help, but significant symptoms have effective treatment options. 6 7
- HRT is the most effective treatment for vasomotor symptoms for appropriate candidates, but treatment must be individualised. 6
- Persistent or unusual sweating should not automatically be blamed on menopause.
References
[1] The Menopause Society. Hot Flashes.The Menopause Society — Hot Flashes
[2] NICE. Menopause: Identification and Management. Updated 2026.NICE — Menopause Guidance
[3] Gombert-Labedens M, Vesterdorf K, Fuller A, Maloney SK, Baker FC. Effects of menopause on temperature regulation. 2025.PubMed — Effects of Menopause on Temperature Regulation
[4] Stefanopoulou E, Shah D, Shah R, Gupta P, Sturdee DW, Hunter MS. An International Menopause Society study of climate, altitude, temperature (IMS-CAT) and vasomotor symptoms in urban Indian regions. 2014.PubMed — Urban Indian Vasomotor Symptoms Study
[5] Shobhana M, et al. Incidence of Hot Flashes among Peri- and Postmenopausal Women in India: A Clinico-demographic Analysis. 2025.PubMed — Indian Hot Flash Study
[6] American College of Obstetricians and Gynecologists. Hormone Therapy for Menopause.ACOG — Hormone Therapy for Menopause
[7] NICE. Fezolinetant for treating moderate to severe vasomotor symptoms associated with menopause. 2026.NICE — Fezolinetant Guidance