intermittent fasting is the practice of restricting your eating to specific times of day, and fasting or not eating for the rest of the day. intermittent fasting focuses on confining your eating times to a set schedule every day. research suggests intermittent fasting may improve the quality of your sleep by reinforcing your circadian rhythms. your circadian rhythms manage a host of biological functions, from your appetite and metabolism to your sleep-wake cycle.
while intermittent fasting appears to improve sleep quality, it could also lead to sleep issues depending on the timing of your meals. sticking to a consistent eating schedule may improve the quality of your sleep. drinking more water during the day may reduce your hunger cravings, while also making it easier to sleep at night. fasting for eight hours might be easier than 12, or you may prefer to lower your caloric intake a few days of the week. the sleep foundation editorial team is dedicated to providing content that meets the highest standards for accuracy and objectivity.
important: if your sleep troubles don’t improve over a short time period, or you have any other physical symptoms, go see a medical professional as soon as possible. while not all of these likely pertain to your particular situation, there are 8 main ways that fasting can cause sleep trouble that may develop into a type of insomnia. summaryin the short term, fasting can lead to higher energy levels that makes it harder to sleep. research in people switching to a ketogenic diet has found that this type of change can cause sleep issues while your body adjusts to it (4). if you’re eating earlier or later in the day, it may be a part of your issues. many people restrict caffeine intake to the morning, as it can make it harder to sleep if you consume it later in the day. even if you break your fast with your coffee, it may still be late enough to cause you sleep issues.
summaryif fasting is making you exercise at a different time than you’re used to, it can be playing a part in your sleep difficulties. it can be hard to eat the same amount of calories that you’re used to in a smaller time frame. summaryany discomfort makes it harder to get to sleep and maintain it throughout the night. it’s also easier to justify eating junk food after fasting for a long period, particularly if you’ve exercised during it. if they are eaten on a regular basis, it can lead to vitamin and mineral deficiencies that cause sleep trouble and more serious health problems. studies of people fasting during ramadan has shown that it doesn’t affect most of your sleep cycles, but fasting does reduce the amount of rem sleep (6). while not as important for basic restorative purposes, a lack of rem sleep may cause you to wake up earlier or feel less refreshed.
intermittent fasting and insomnia while intermittent fasting appears to improve sleep quality, it could also lead to sleep issues depending on why intermittent fasting can cause insomnia in the long run, most people find that intermittent fasting helps them sleep better, if anything. it has been postulated that tre diets, which involve fasting for 2–5 h before bedtime, may lower rates of insomnia. specifically, abstaining, intermittent fasting insomnia reddit, intermittent fasting insomnia reddit, intermittent fasting can t sleep hungry, intermittent fasting waking up at 4am, prolonged fasting insomnia.
eating at irregular times can disrupt sleep and trigger unwanted changes in body temperature, alertness, and mood. if you eat too close to bedtime, your body temperature can spike, making it difficult to fall and stay asleep. when implementing intermittent fasting with only a minor daily energy deficit, you will not see a large rise in cortisol, and sleep will actually improve. but, but here’s the good news — so far, there is little to no evidence in the scientific literature of intermittent fasting causing negative effects can intermittent fasting cause sleeplessness/insomnia?, water fasting insomnia, intermittent fasting and sleep apnea.
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