Tag: Circadian rhythm

Over 90% of nights experience some form of temperature drop after sunset, a phenomenon tied to how the Earth releases energy. Understanding what makes temperatures drop at night offers valuable insight into your sleep health and daily weather patterns.

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.

The human body's core temperature fluctuates naturally throughout the day, influenced by a 24-hour cycle called the circadian rhythm. This rhythm causes a predictable thermal shift, peaking in the evening and dropping to its lowest point in the early morning. Understanding **what time of day does body temperature peak** can offer fascinating insights into your biological clock and overall health.

A natural afternoon energy dip occurs for most people between 1 and 4 p.m., as part of the body's circadian rhythm. For many, the question of how long does a dip usually last depends entirely on its cause, whether it's a blood sugar crash, low mood, or general fatigue.

Research published in *Brain* demonstrated that our body's internal clock is responsible for up to 80% of daily fluctuations in pain sensitivity. This discovery helps explain why healing wounds hurt more at night, as our circadian rhythm, hormones, and psychological state shift, amplifying discomfort when we need rest the most.

According to sleep researchers, a late-evening surge of alertness, often called the “wake maintenance zone,” is a normal part of the human circadian rhythm. So, why do I get bursts of energy at night? It can be influenced by a complex interplay of natural biological factors and modern lifestyle choices.

In a surprising finding that connects daily routines with cellular function, a 2017 study published in *Science Translational Medicine* revealed that burns sustained at night took an average of 11 days longer to heal than those incurred during the day. This groundbreaking discovery fundamentally reshapes our understanding of **what time of day do wounds heal?** and points to the power of our body's internal clock.

According to sleep science, a natural dip in your body's circadian rhythm occurs in the mid-afternoon, but it's not the only reason for your fatigue. Understanding why do I keep crashing at 2pm is the first step toward regaining your focus and energy throughout the day.

Evidence indicates that your body's circadian rhythm, or internal clock, plays a key role in regulating immune responses and can be a significant factor in what causes body inflammation at night. Understanding these natural, nightly fluctuations is the first step toward managing your symptoms and improving sleep quality.

Research indicates that the body's immune system, governed by the internal circadian clock, is naturally more active during the night, which can cause symptoms to worsen. For those living with chronic pain or autoimmune disorders, the question of why does inflammation peak at night is a critical aspect of managing their condition and getting restful sleep.