What's worse than running nose, continuous sneezing, and a fever? It is the dreams you get when you have finally managed to put yourself to sleep, and those dreams are bad, scary, intense, and negative. Why does this happen?What Is A Fever Dream?A dream is basically a series of thoughts, images, sensations that you feel while you are sleeping, and scientists tell us that we have our strongest dreams during the rapid eye movement or the REM of the sleep stage. Certain factors, including you health could influence your sleep visions and your dreams. A change in body temperature, especially when it is higher than usual could lead to a fever dream, which mostly could be intense, like a nightmare.As per a 2016 study published in the International Journal of Dream Research, 94 per cent of participants described their fever dreams as negative. Another 2013 study noted that one of the participants had dreams that would move "back and forth between a very difficult circumstance and a very comfortable circumstance." A recent online study in 2020, published in the journal Frontiers Psychology noted that of the 164 participants, 100 of them reported fever dreams. Most of them said that fever dreams were more bizarre, and negatively toned. While fever dream is known in the medical literature, the scientific studies on the same are limited. Many often describe this as an emotionally intense, troubling, strange, out of character, or a scary dream. The dreams could be the result of less social interactions due to someone being sick. When Does A Fever Dream Happen?A fever dream happens when the normal body temperature rises 2 degrees above. The normal body temperature is between 97 and 99 degree F. Anyone can develop a fever, due to the following conditions:a viral or bacterial infectionheat exhaustioncertain inflammatory conditions such as rheumatoid arthritismedicines, such as antibioticsan immunizationa tumorWhy Do You Get Bad Dreams During Fever?While there is no exact reasoning for it, the 2020 online study notes that the concept behind this is the 'over-heated' brain. High temperature of the body could disrupt the brain's normal cognitive functions. The authors of the 2020 study note, "The basic idea is that the ‘over-heated’ brain is not functioning properly and, therefore, dreams are more bizarre.”During the REM stage of sleep, the phase where your most vivid dreams unfold, the body already struggles to regulate its internal temperature. When a fever strikes, it disrupts this delicate balance even further, often resulting in intense or disturbing dreams. Fevers can also stir the mind in other unsettling ways, sometimes causing waking hallucinations, irritability, or even brief episodes of confusion.Dr Mark Rosenblum, who is a sleep psychologist with Hennepin Healthcare, tells CBS News that the reason behind intense dream during sickness is due to REM. He says, "If someone's not getting enough sleep, they get what's called REM rebound on the following nights. And when we have REM rebound, what we'll find is all our dreams tend to be very intense."Are There Any Symptoms Of Fever Dreams?As per a 2016 study published in the International Journal of Dream, fever dreams contain some sort of spatial distortion, that include:Moving wallsCreatures with oversized arms and legsMetal spheres that move like an organismBlackness spreading slowlyGigantic insects
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