2024年1月29日 · Waking up frequently at night often occurs alongside physical and mental disorders, and tends to increase with age. Learn possible reasons you might wake up during …

2024年10月30日 · Ever find yourself awake, staring into space at four in the morning? Is it just a bad habit, or is there something more sinister going on? And why does it always seem to …

2025年3月20日 · Rising cortisol levels around 3 or 4 AM could explain why you often wake up around the same time. Genes that influence your chronotype, sleep duration, sleep pattern, …

2024年12月27日 · Meaning if you tend to go to sleep at around 11pm, then your body clock is waking you up hours later. But why is this? "Sleep is guided by our internal clock or circadian …

2024年8月21日 · Key Takeaways Reasons for Waking Up Too Early: There can be various reasons for waking up at 4:00 am, and they may include factors such as insomnia, stress, …

Our bodies operate on a natural sleep-wake cycle known as the circadian rhythm. Ideally, we should be able to sleep soundly through the night and wake refreshed in the morning. But …

2023年7月30日 · However, frequent night awakenings could also be a sign of insomnia, which has been found in 40% of older adults. But before you self-diagnose, it could be helpful to take …

2023年12月27日 · So we know some reasons why we wake up in the night – but why does it seem to happen so specifically at 3 or 4 a.m.? Well, consider the following: most of us typically …

AM means before noon. This is the 12-hour period from midnight to noon. PM means after noon. It covers the 12 hours from noon to midnight. Using numbers from 1 to 12, followed by am or …

2025年2月8日 · Frequent awakenings at 4 AM are often linked to shallower sleep cycles and the role of hormones such as melatonin and cortisol. External factors like blue light or …