Hot flushes and menopause: Why they happen and how to take the heat out of them

Hot flushes have a remarkable talent for arriving at the least convenient moment: mid-Zoom call, halfway through a decent night’s sleep, or just as you’ve finally found an outfit that doesn’t involve linen. One minute you’re perfectly fine; the next, your body temperature is staging a coup with no regard for the actual weather.

Hot flushes and night sweats are some of the most common menopausal symptoms, but that doesn’t make them any less disruptive. Also called hot flashes, they can feel like a sudden feeling of heat, warmth spreading through the chest, neck, and face, sweating, flushing, and the occasional urge to stand in front of the freezer pretending you’re looking for peas [1].

The good news? While you can’t always stop a hot flush from coming, you can understand why hot flushes happen, identify your triggers, and explore practical ways to manage hot flushes without simply surrendering to the nearest portable fan.

What is a hot flush?

A hot flush is a sudden feeling of heat, usually across the face, neck, chest, and upper body. You might feel warmth spreading, notice your skin flushing, start sweating, or feel your heart rate pick up. Then, once the heat passes, you may feel chilled or clammy [1].

Hot flushes are part of a group of symptoms known as vasomotor symptoms, which are linked to changes in how the body regulates temperature during the menopause transition. They can happen during the day or at night. When they happen while you’re sleeping, they’re often called night sweats, and yes, waking up damp, irritated, and questioning your bedding choices counts.

According to The Royal Women’s Hospital, around 80% of women experience hot flushes and night sweats during menopause [2].

What are the symptoms of a hot flush?

Hot flushes can feel different from woman to woman. Some are barely noticeable, while others can disturb sleep, interrupt daily activities, or leave you feeling like your internal thermostat has resigned without notice.

Common symptoms include:

• A sudden wave of heat: Often felt in the face, neck, chest, or upper body. This is the classic hot flush moment.
• Flushing or redness: The skin may look pink or red as blood vessels widen near the surface.
• Sweating: This can range from a light glow to a full “why am I drenched?” situation.
• Night sweats: Nighttime hot flashes can wake you and leave clothes or sheets damp.
• Chills afterwards: Once body heat drops again, you may feel cold or shivery.
• Faster heartbeat: Some women notice palpitations or a fluttery feeling.
• Sleep problems: Repeated night sweats can lead to broken sleep, fatigue, and mood changes.
• Emotional aftershocks: Feeling embarrassed, stressed, irritated, or fed up is common, especially when hot flashes happen in public or during work.

Hot flushes can also appear alongside other symptoms of menopause, such as vaginal dryness, mood changes, weight gain, and changes in sleep or emotional health [3].

What causes hot flushes?

Hot flushes are mainly linked to changing hormone levels, particularly declining and fluctuating oestrogen during perimenopause and menopause. Oestrogen helps influence the part of the brain that regulates body temperature, so when levels shift, the brain can become more sensitive to small temperature changes [1]. The result: your body thinks it needs to cool down, even if you were simply sitting at your desk pretending to enjoy herbal tea.

When the brain senses a tiny rise in temperature, it can trigger the cooling response: blood vessels widen, sweating starts, and heat rushes to the skin. That’s why hot flashes happen so suddenly. It’s not that your body is overheating in a dangerous way. It’s more that the temperature control system has become a little twitchy.

Not everyone experiences hot flushes the same way. Risk factors can include smoking, higher body weight, stress, certain medical conditions, some medicines, and medically induced menopause. Research from the Study of Women’s Health Across the Nation also found differences by race and ethnicity, with Black women reporting hot flashes for longer on average than women of other races [4].

When do hot flushes start and end?

Hot flushes can start during perimenopause, before periods stop completely. For some women, they arrive while the menstrual cycle is still doing its irregular little tap dance. For others, they begin around the final menstrual period or after menopause.

The average age of menopause in Australia is around 51, but symptoms can start years earlier during perimenopause [3]. Hot flushes may ease after menopause, but not always immediately. Some women continue to experience them for years, while others find they gradually become less frequent, less intense, or easier to manage.

How long do hot flushes last?

For many women dealing with hot flushes, menopause can feel less like a life stage and more like an unexpected crash course in temperature management. An individual hot flush usually lasts from a few seconds to several minutes, though it can feel longer when you’re trapped in a meeting, a supermarket queue, or any location where removing clothing would be frowned upon.

Across the menopause transition, symptoms can last much longer than many people expect. Research found that frequent vasomotor symptoms, including hot flushes and night sweats, lasted a median of more than seven years, and for some women they continued for longer [4].

Can you control hot flushes?

Not completely, in the sense that you cannot simply tell your hormones to behave and expect them to sit quietly. But you can often reduce the frequency, intensity, or fallout of hot flushes by identifying triggers, adjusting your environment, and getting the right support. If you feel a hot flush coming, simple cooling strategies may help, and if symptoms are severe, there are medical treatment options worth discussing with a doctor.

There are treatments available for hot flushes, night sweats, and vaginal dryness, though they may not be suitable for everyone [5].

What lifestyle changes can help manage hot flushes?

Looking to reduce menopausal symptoms like hot flushes? Lifestyle changes won’t magically delete hot flushes from your life, but they can help you feel more in control and may make symptoms easier to tolerate [5]. Think of them as turning down the volume, not switching off the whole sound system.

Try these practical strategies for managing hot flashes:

• Identify and avoid triggers: Common triggers include spicy foods, alcohol, stress, overheated rooms, and hot drinks. Your trigger list may be personal, so keep notes if symptoms feel unpredictable.
• Dress in layers: Light, breathable clothing makes it easier to remove a layer before the heat wave fully commits.
• Keep cool at night: Use separate bed covers, lighter bedding, breathable sleepwear, and a cooler room to help manage night sweats.
• Use a portable fan: A desk fan, handbag fan, or bedside fan can be a tiny hero when the heat hits.
• Move regularly: Exercise may not stop hot flushes directly, but it can support sleep, mood, cardiovascular health, and weight management. Healthdirect notes regular exercise can improve the quality of life during menopause.
• Support a healthy weight: Weight gain may worsen hot flushes for some women, while weight management can support overall health.
• Practise stress reduction: Breathwork, yoga, mindfulness, or a short walk can help support emotional health and may reduce the intensity of some symptoms.
• Review caffeine and alcohol: Some women find that these cause more hot flashes or worsen sleep. Rude, but worth testing.
• Don’t rely on herbal medicines without advice: Some people try options like black cohosh, but evidence is mixed, and herbal medicines can interact with other treatments or may not be suitable for certain health risks.

Tips for managing hot flushes

If hot flushes are mild, small tweaks may be enough: cooler sleep routines, trigger tracking, breathable clothing, a fan within reach, and permission to stop pretending you’re fine when you are clearly melting.

If symptoms are affecting sleep, work, mood, or daily activities, or you're experiencing severe hot flashes, it’s worth speaking with a health professional. They can discuss whether treatment is suitable to help improve menopausal symptoms. If this is not an option because of your medical history, ask about non-hormonal medications and other options. The Australasian Menopause Society lists prescription non-hormonal drug treatments and other medicines that may help hot flushes, sweats, mood, and sleep in some women. [5]

If menopause symptoms are tangled up with weight changes, sleep problems, mood shifts, and the general feeling that your body has changed the terms and conditions overnight, Juniper’s Weight Reset Program can support the bigger picture.

With medical care, health coaching, and practical lifestyle support, Juniper helps women build habits that support weight management and wellbeing through every hormonal plot twist. Because managing hot flushes is not about grinning through the sweat, it’s about getting the right support, understanding your options, and taking the heat out of menopause one sensible step at a time.

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