Category: Sleep science

Normal body temperature isn't a single, fixed number but fluctuates by about 0.5°C to 1°C throughout the day due to your body's natural circadian rhythm. It's perfectly normal to have a higher body temperature in the morning as part of this natural waking process.

While the body does its most significant repair work during sleep, the healing process is a continuous, 24/7 operation. Our physiological systems are always working to maintain health, meaning your body can and does heal while you're awake.

Approximately 60% of adults are side sleepers, but knowing which side offers the most benefits can be a game-changer for your health. When considering how to decide left or right side, factors like digestion, circulation, and personal comfort are key to achieving optimal well-being.

According to the Centers for Disease Control and Prevention (CDC), a significant portion of the adult population does not get enough sleep. This alarming statistic underscores the widespread neglect of a fundamental biological necessity, highlighting just **how important is rest to the body** for maintaining physical, mental, and emotional health.

While the traditional 'normal' body temperature of 98.6°F has been updated by modern research, a more significant discovery is that your temperature is never truly static. Instead, it follows a predictable 24-hour cycle, and understanding **how does your temperature change during the day** is key to recognizing your body's natural rhythms.

Research indicates that the body's core temperature, heart rate, and immune function dip to their lowest levels between 3 a.m. and 4 a.m.. This period is a prime example of the internal biological processes that define **what time of the night is your body the weakest?** and sheds light on crucial aspects of our health.

According to Consumer Reports, shoppers who spend more than 15 minutes testing a mattress are more satisfied with their purchase. Knowing exactly how to test a mattress in a store is crucial for selecting a bed that supports your body and promotes restorative, long-term sleep health.

Over half of the population prefers a side-sleeping position, with many unconsciously adopting a variation that includes bending one leg upwards. Discovering **why do girls sleep with one leg up?** often reveals practical physiological and comfort-based reasons, including temperature control, stability, and alleviating physical discomfort.

While yawning is a universal and evolutionary conserved behavior observed in nearly all vertebrates, starting as early as 11 weeks in human fetuses, it's also a reflex that many attempt to stifle. But what happens if you don't open your mouth when you yawn? Physically possible but often unsatisfying, the stifled yawn prevents the full physiological process and leaves you with an incomplete sensation.

According to estimates, a person can lose anywhere from 1 to 4 pounds overnight, but this isn't the body fat you're targeting. The surprising answer to 'where does all my weight go when I sleep?' is that it's primarily a temporary loss of water and carbon from normal physiological processes.