8 Medical Explanations Of Causes Of Night Sweats


Practically every individual tosses their covers off during warm nights or has awoken with beads of sweat running down their face after having a particularly dramatic nightmare. Although it might be annoying, sweating consistently during the night is not usually an issue. However, according to the Mayo Clinic, frequently waking up with soaked sheets and drenched pajamas are signs that would imply that there is a medical condition referred to as sleep hyperhidrosis, or typically known as night sweats. These night sweats are very common, and scientists have confirmed approximately ten to forty percent of adults have reported having them within a given year. Several things could result in an individual having night sweats, this is the reason there is no one size fits all type of remedy. In order to prevent hyperhidrosis, individuals have to identify firstly the root of the perspiration.

Thyroid Disorders

When individuals are thinking about what causes them to have night sweats, they need to think about their thyroid, that butterfly-shaped, tiny gland that can be found in the neck. It is responsible for how the body distributes or utilizes the energy it has, as stated by the May Clinic, plus anytime it releases too much hyperthyroidism or hormone thyroxine, into the system, it results in the internal engines revving up. This could then result in pm perspiration and other symptoms such as unexpected loss in weight, racing heart, and increased appetite as well. Typically, the symptoms could be resolved with hormonal treatments, while having blood tests could identify the condition easily.

Low Blood Sugar

In the event that a person suffers from type I diabetes, getting up from sleeping feeling hot and uncomfortable maybe the person’s body way of warning them that the blood sugar is too low, also referred to as hypoglycemia. This in turn activates the discharge of adrenaline or epinephrine, which is known as the fight or flight hormone with responsibility for inducing sweat, as documented by the American Diabetes Association. PM perspiration might happen if the individual fails to inject an adequate quantity of insulin directly prior to going to bed. Luckily, these sweat episodes are treatable, as a late-night snack could assist as a preventive measure in balancing out the levels of insulin.


Sweat derived from stress is very different from the type of sweat that is released from the body when exercising, Moisture springs from the apocrine glands located in the scalp, groin, and armpits when an individual is experiencing anxiety. Overheating can cause the body to also release sweat via other glands. In order to assist a brain that is anxious to shut down during the night, individuals could attempt deep breathing, gentle yoga, or meditation before hitting the sheets. If the individual concentrates on feeling cool and relaxed the sweat glands should in turn get the message.


Infections could result in night sweats, with the biggest culprit being tuberculosis. As indicated by the Centers for Disease Control and Prevention, symptoms of tuberculosis often involve a fever which could result in chills and night sweats, it could also be accompanied by loss of appetite, loss in weight, and a cough that could last for a few weeks or even more. Less common types include endocarditis or heart valve inflammation, bone inflammation or osteomyelitis, and bacterial infections, which could all stimulate night sweats as well.


Close to eighty percent of females have reported suffering from hot flashes while experiencing menopause, plus it does not just occur during the daytime. While experiencing menopause, progesterone, and estrogen, the hormones that impact the temperature management of the body, among other functions, fluctuate, resulting in the characteristic abrupt heat. Maintain a fan close to the bed and switch it on whenever feeling flushed.


The very same glass of wine that has been proven to assist an individual in being relaxed just before going to bed could result in the individual awakening in a bed full of perspiration. Alcohol could impact the nervous system and the body’s capacity to sense and control its temperature. Consuming alcohol results in the blood vessels in the skin to expand, via a process known as vasodilation, resulting in the individual feeling flushed and toasty.

Sleep Apnea

OSA or obstructive sleep apnea is a condition that results in the muscles of the throat relaxing and then interfering with the airway, as explained by the Mayo Clinic. Consequently, the breathing of the individual will stop repeatedly and restart again during the nighttime slumber. The amplified effort that is required to take a breath could result in the individual waking up drenched in sweat and red-faced. A study conducted in 2013, revealed that thirty percent of males and thirty-three percent of females that suffer from obstructive sleep apnea documented having night sweats, as compared to nine percent of males and twelve percent of females in the general population.

Chronic Fatigue Syndrome

Myalgic encephalomyelitis which is the scientific term for chronic fatigue syndrome is typically accompanied by night sweats, as documented by the Centers for Disease Control and Prevention. This condition which drains the body of energy affects approximately two and a half million individuals in the United States of America; in many cases experiencing night sweats could indicate the early onset of the disease or that the person has suffered a relapse. The American ME and CFS Society states that the reasons for the night sweats could be due to imbalances in hormones, immune system stimulation, and low blood sugar levels.


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