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A 2023 study suggests that women who prefer to stay up and wake up later are more likely to develop diabetes and to have unhealthful lifestyle habits compared with those who prefer to go to bed and wake up earlier.

Fatigue is a common symptom that can be caused by a whole host of factors, from medical conditions to stress and poor sleep. In order to ease ongoing fatigue, it's important to investigate and treat the underlying cause. Fatigue that doesn't respond to interventions or is severe or persistent should be brought to the attention of a doctor. It may be caused by a medical condition.

Our internal clocks regulate the sleep-wake cycle, and light establishes when we should feel wakeful or sleepy. Light exposure at night affects these natural processes, so researchers studied whether wearing an eye mask while sleeping might help learning and alertness.

A 2023 study suggests that women who have both ovaries removed before menopause face higher odds of several health conditions, including arthritis, sleep apnea, and bone fractures.

The use of sleep tracking devices is increasing, but using a sleep tracker can contribute to anxiety and insomnia. Data from the device can influence how a person feels after awakening, even if the data aren't accurate. Sleep trackers can make people more aware of their sleep patterns and potentially help identify sleep disorders, but the data generated can be confusing and lead people to ignore how they feel after sleeping. A special form of cognitive behavioral therapy called CBTi is designed to improve insomnia and anxiety around sleep.

When people with atrial fibrillation sleep poorly, they may be more likely to have an episode of atrial fibrillation the next day, according to a 2023 study.

Some couples find that sleeping in separate rooms helps them get a better night's sleep. But before trying it, it's important to consider compromises to stay in the same room. For example, if one person snores, a doctor visit might be in order, and the other person might try wearing earplugs to better tolerate the sound. If separate bedrooms are the answer, it helps to make both sleeping spaces cozy, schedule time for intimacy, and regularly assess whether the arrangement is working for both partners.

In women, sleep problems—including falling asleep, staying asleep, and insufficient sleep—were associated with a greater risk of high blood pressure.

An estimated 3% of adults ages 65 and older currently have dementia, and that proportion rises substantially as people age. The most convincing evidence for reducing one's risk relates to the basic foundations for an overall healthy lifestyle: aerobic exercise, a plant-based diet, and quality sleep. Aerobic exercise helps reduce the buildup of toxic proteins in the brain and improves blood flow, a plant-based diet can manage inflammation, and quality sleep helps the brain clear out harmful proteins.

People with insomnia can quiet a racing mind or relax a tense body with progressive muscle relaxation, which involves gradually tensing and relaxing muscles, beginning with the toes and working up the body.