
Night sweats are a common occurrence that can affect anyone, regardless of age or gender. They are often caused by internal factors, such as hormonal changes, infections, medications, or underlying health conditions. While night sweats are usually more of an annoyance than a serious health issue, they can sometimes indicate underlying conditions such as cancer, leukemia, lymphoma, or tuberculosis. Night sweats are also commonly associated with menopause and perimenopause in women, often due to hormonal changes affecting the body's ability to regulate temperature. If you are experiencing night sweats and are concerned, it is recommended to speak with a doctor to identify any potential underlying causes and explore treatment options.
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What You'll Learn

Night sweats and menopause
While night sweats can affect anyone, they are most commonly associated with women, especially during menopause. They are a type of vasomotor symptom, which occurs when the blood vessels dilate to regulate the body's temperature. This results in an intense feeling of heat and excessive sweating.
Night sweats and hot flashes are common symptoms of menopause and perimenopause, with up to 85% of women experiencing hot flashes during this time. They can begin before or during menopause and may last throughout the entire menopause process. The frequency of night sweats varies, with some women experiencing them every night, while others only have them occasionally. They are triggered by fluctuating hormone levels, particularly oestrogen and progesterone, which are responsible for the body's temperature control. This hormonal change makes the body more sensitive to temperature changes, and even a small change can trigger night sweats.
The impact of night sweats can extend beyond discomfort, as they can severely disrupt sleep, leading to daytime drowsiness and reduced function. However, there are several strategies to manage and reduce the occurrence of night sweats:
- Keeping the room temperature cool by using air conditioning, fans, or opening windows.
- Using lightweight bedding and wearing loose-fitting pyjamas made from natural fibres like cotton or linen.
- Drinking cold water and avoiding certain foods, such as spicy, highly acidic, or chocolatey foods, especially close to bedtime.
- Engaging in regular exercise, such as cycling or jogging for 45 minutes a few times a week, can help regulate body temperature.
- Practising mindfulness meditation and cognitive behavioural therapy (CBT) have been suggested to reduce the impact of night sweats.
- Hormone replacement therapy (HRT) has been proven effective in alleviating menopause symptoms, including night sweats.
While these strategies can help manage night sweats, it is important to note that they may not work for everyone. If night sweats are severely impacting your quality of life, it is recommended to consult a doctor or a menopause clinic for personalised advice and treatment options.
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Night sweats and anxiety
While night sweats are most commonly associated with hormonal changes in women, particularly during perimenopause and menopause, they can affect anyone, regardless of gender or age. Night sweats are moments of moderate to heavy sweating that occur during sleep. They can be caused by various factors, including environmental temperature, medications, underlying medical conditions, and anxiety.
Anxiety is known to trigger sweating, and there is a clear connection between anxiety, sleep disorders, and sweating. Stressful circumstances that affect one's physical or mental health may also contribute to night sweats. For example, people who have experienced traumatic life events may develop post-traumatic stress disorder (PTSD), which can cause nightmares, sleep disturbances, flashbacks, and other anxiety-inducing symptoms. Such episodes can result in both daytime and night sweats.
Additionally, anxiety and stress can cause a person to become overheated and sweaty both day and night. If regular night sweats disrupt sleep and lead to insomnia, this can further contribute to anxiety about sleep, creating a cycle.
If you are experiencing night sweats, it is advisable to consult a healthcare professional, who can help identify the underlying cause and provide personalized guidance. Implementing lifestyle adjustments, such as avoiding caffeine and alcohol before bed, maintaining a cool sleeping environment, and practicing relaxation techniques, can also help manage anxiety and reduce the frequency of night sweats.
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Night sweats and cancer
Night sweats are a common symptom of certain cancers. They can also be a side effect of some cancer treatments. Night sweats related to cancer tend to be persistent and drenching, often accompanied by other symptoms such as fever, unexplained weight loss, and fatigue. Leukemia, lymphoma, bone cancer, and liver cancer are among the cancers associated with night sweats.
If you are experiencing night sweats, it is important to see your doctor for a full examination to determine the underlying cause. Your doctor will review your medical history, assess your symptoms, and may order blood tests to check your thyroid levels, blood sugar levels, and blood cell counts. Be honest about your symptoms and concerns, and feel free to seek a second opinion if needed.
There are steps you can take to help control body temperature and ease the symptoms of night sweats. These include wearing loose-fitting clothing made of cotton or linen, using fans and air conditioning, practising relaxation techniques, and avoiding common triggers such as sugar before bed.
In terms of medical treatment, the options depend on the underlying cause of the night sweats. For menopause-related night sweats, hormone therapy, such as estrogen replacement therapy or hormone replacement therapy with progestin, may be an option. However, women with a history of breast cancer may not be able to take estrogen replacement therapy, and hormone replacement therapy with progestin may increase the risk of breast cancer or recurrence. Other non-estrogen drugs used to control hot flashes and night sweats include megestrol, medroxyprogesterone, certain antidepressants, anticonvulsants, and clonidine.
If cancer is the cause of your night sweats, the focus will shift to treating the cancer. Common cancer treatments include surgery, chemotherapy, radiation, and drug therapy. Some cancer treatment drugs may cause night sweats, but as your body adjusts to the treatment, the night sweats may subside.
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Night sweats and medication
While night sweats are most commonly associated with women, they can affect anyone. They are often related to hormonal changes, such as those that occur during perimenopause and menopause. However, night sweats can also be a side effect of certain medications.
Medications that may cause night sweats
Common medications that are known to cause night sweats as a side effect include:
- Antidepressants
- Diabetes medications
- Steroids
- Acetaminophen
- Aspirin
- High blood pressure drugs
- Prednisone (Rayos)
- Escitalopram (Lexapro)
- Ibuprofen (Motrin, Advil)
- Leuprolide (Lupron Depot, Eligard, Camcevi)
- Triptans
Additionally, selective serotonin reuptake inhibitors (SSRIs) and other medications that affect serotonin levels may increase the risk of serotonin syndrome, which can include night sweats as a symptom.
Treating medication-induced night sweats
If you are experiencing night sweats due to medication, there are several options for management and treatment:
- Speak to your doctor: Your doctor may be able to prescribe an alternative medication that does not cause night sweats or adjust the dosage of your current medication.
- Lifestyle modifications: Making lifestyle changes can help minimize night sweats and improve your comfort. This includes wearing loose-fitting clothing and lightweight bedding, using a fan or air conditioning, and staying hydrated with cold water. Regular exercise during the day can also help regulate body temperature.
- Complementary and herbal therapies: Some people explore complementary or herbal therapies to alleviate night sweats. However, it is important to consult with your doctor or a healthcare professional before starting any alternative treatments.
It is important to consult a healthcare professional if night sweats are disturbing your sleep or if they are accompanied by other symptoms, as they may indicate an underlying condition that requires medical attention.
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Night sweats and hormones
While night sweats can affect anyone, they are most commonly associated with women, particularly during perimenopause and menopause. Perimenopause is the period that precedes menopause, usually occurring between the ages of 40 and 50, and is marked by fluctuating hormone levels. During perimenopause, the ovaries produce less estrogen, progesterone, and testosterone, and periods become irregular.
Hormone changes related to reproductive hormones, such as estrogen and progesterone, can cause unpleasant changes in body temperature, making one feel too hot. The body may respond with a hot flash to cool down, or one may sweat excessively (night sweat). These hormonal fluctuations during perimenopause and menopause can cause the hypothalamus—the part of the brain that controls body heat—to struggle with regulating body temperature. This can result in sudden warmth or a flush in the face, neck, and chest, triggering excessive sweating as the body attempts to cool itself.
Hormonal changes during the menstrual cycle can also induce night sweats. Estrogen levels typically decrease before the period, during the time associated with PMS and PMDD. While irritability and cramps are more common symptoms of PMS and PMDD, night sweats can also occur. Additionally, pregnancy-related hormonal fluctuations may cause night sweats, particularly during the first and third trimesters. The sweating may persist for a few weeks after childbirth as hormone levels adjust back to their pre-pregnancy state.
Hormone replacement therapy (HRT) has proven effective in alleviating night sweats associated with menopause. However, some women opt for complementary or herbal therapies to address these symptoms. It is important to consult a doctor to determine the underlying cause of night sweats and receive appropriate treatment recommendations.
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Frequently asked questions
Night sweats are when you regularly wake up with your pyjamas and sheets soaked with perspiration, even when it's not hot or you don't have too many blankets on the bed.
Night sweats are usually caused by hormonal changes, particularly those related to female reproductive hormones like estrogen and progesterone. They are also commonly associated with menopause, perimenopause, pregnancy, medication, underlying health conditions, and stress or anxiety.
Night sweats are usually more of an annoyance than a sign of a serious health problem. However, if you are concerned about night sweats or if they are disturbing your sleep, it is recommended that you speak to your doctor.











































