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why does my body overheat at night

If you often wake up in the middle of the night, drenched in sweat even though it s cool in your bedroom you have nocturnal hyperhidrosis, aka the night sweats. It might just be because you ve cranked up the central heating, wearing thick pyjamas or it could indicate something far more serious. On average, we perspire as much as one litre of water every day to help us maintain our constant body temperature of 37 C. This increases at night when we re wrapped up more warmly in winter or suffering from excessive sweating. The body s temperature control system is very efficient, says GP Dr Martin Godfrey. The body has to maintain a constant core temperature, so it has lots of ways of losing heat if it s too hot, or retaining heat if it s too cold. The system of vasodilation (widening of the blood cells to increase blood flow, which makes your skin flush) is the body s way of saying we need to lose heat. Your body s very good at it, but it can feel very uncomfortable. Overheating and sweating can cause us to wake up in the deepest sleep stage, depriving us of a good night s sleep and making us more irritable during the day. It can be debilitating for people who get it on a regular basis, says Dr Godfrey. Just a few nights of not sleeping makes you tired and irritable and makes it difficult to work or do what you need to. The night sweats are not only uncomfortable for you they can be unpleasant for anyone you re sharing a bed with, too.

But if you suffer from them, you re not alone. Night sweats are common and will affect different types of people in different ways, says Dr Godfrey. Here are some of the main causes:
1. Cancer As a GP, if somebody s talking about night sweats, you want to make sure there s nothing serious going on and lymphoma is one of the causes of night sweats that you want to be certain there isn t a risk of. Night sweats can be an early indication of this type of cancer, which develops in the lymphatic system and causes lymph nodes to swell. 2. Menopause If there are no [swollen] lymph nodes and nothing making you think something sinister is going on, then if the patient s a woman and she s of menopausal age, it could be an early sign of that happening, explains Dr Godfrey. 3. Infections Excessive sweating, combined with a raised temperature, can be a sign of infection. According to NHS choices, the most common infection associated with night sweats is tuberculosis, but it can also be a sign of endocarditis (inflammation of the heart valves), osteomyelitis (a bone infection), abscesses and HIV/AIDS. 4. Alcohol Dr Godfrey says: Alcohol can affect people in different ways, but people who have been drinking heavily don t realise that a lot of vasodilation goes on. So when they re in bed, they ll be hot and sweaty, even though they won t have a temperature. 5. Change of season Dr Godfrey says: In the spring, people often still dress up warmly and have covers on their beds commensurate with it being very cold and so they then become overheated. 6.

Medication Sweating at night can also be a side-effect of certain types of medication, including anti-depressants. So how to cope with the night sweats? Apart from the obvious techniques to cool down including opening a window and kicking off your bedclothes Dr Godfrey recommends having a fan in your bedroom. Cool air is very effective at getting rid of the discomfort and bringing the temperature down, he says. If you re worried, go and see your doctor, he advises. They will probably give you a blood test, looking at your white cells for signs of lymphoma and if you re a woman, they may well give you a test to see what your hormone levels are. bts_videojs_iframe_container { position: relative; height: 0; padding-bottom: 56. 25%! important; margin-bottom: 15px; }. bts_videojs_iframe_container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0px; } A Expert explains to Female First how being too hot at night can exacerbate a number of health related conditions and offers advice on how to keep cool. Insomnia - Core body temperature plays an important role in the regulation of with a one degree drop required to help us fall off to sleep and a similar rise helping wake us up. Thermoregulatory issues that lead to overheating such as menopause, hot sweats or simply a hot climate can lead to sleep disturbance and insomnia.

Increased breathing - overheating in bed can lead to hyperventilation (increased breathing rate) and consequent reductions in the amount of oxygen in the blood stream. This can increase the risk of early morning ill health including breathing difficulties. Heat exhaustion - overheating is also commonly associated with heat exhaustion and heatstroke. Both include symptoms of tingling skin, goose bumps, nausea and headaches. Research earlier this year, found that 8% of those surveyed called in sick to work due to tiredness and a quarter of those surveyed said that a bad night s sleep impacted their ability to do their job successfully That s why Dr Guy Meadows from Bensons for Beds has put together 11 simple tips that could help you stay cool and well-rested this. You ll thank him for them tonight! Sometimes the simplest solutions are the best. Use sheets and blankets, rather than duvets; these can help to regulate body temperature quickly and easily. Take a cool shower before bed for a quick and easy way to cool down. Avoid freezing showers though as these can be overly stimulating and wake you up. Save satin, silk or polyester sheets for a colder day! Cotton bed linens are lightweight and breathable, promoting airflow in your bedroom. Have a glass of water nearby to drink if and when thirsty. But remember, drinking a full glass of water before bed can lead to multiple toilet visits throughout the night.

Warm weather encourages outdoor activities with lots of loud, excited voices. Use ear plugs to block out noise for a quiet sleep environment. Humans sleep best in a cool bedroom, with the ideal temperature being 17 C. Open a window or invest in a silent electric fan to add an extra breeze. Getting frustrated and restless because you re hot only generates more heat and keeps you up longer. Keep a cool head by lying still only by accepting the heat can you move your mind and body closer to sleep. Warmer nights bring delayed bed times, which can lead to later eating and drinking close to bedtime. For best quality sleep aim to leave at least two hours between eating and sleeping, while limiting alcohol close to bedtime. Some areas of the house are cooler than others. If the heat becomes unbearable, set up camp in another room and enjoy a new cool sleep haven. When bedroom temperatures soar drastically, action is often needed. Pop your sheets and pillows into bags and put them in the freezer ready for a cool bedtime. Core body temperature plays an important role in the regulation of sleep, with a slight drop at the start of the night needed to help you fall to sleep. Bensons for Beds iGel technology pillows absorb heat and store it if you are too hot, thus keeping you at a more balanced, natural sleeping temperature for a comfortable night s sleep. window. clairSettings = { appKey: 'H1n5I8lPz' };

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