Tag: Circadian rhythms

According to the National Institute of General Medical Sciences, nearly every tissue and organ in the human body has its own circadian rhythm. This complex, internal timing system provides the foundation for understanding what is the difference between normal and abnormal time in a medical context, distinguishing typical bodily fluctuations from concerning deviations that require attention.

Genetics play a role in how we perceive cold, with a variant of the *ACTN3* gene influencing some individuals' natural tolerance. However, personal perception and physical adaptation mean that you can be more tolerant to cold through consistent, deliberate exposure, building your body's resilience over time.

According to sleep and circadian rhythm experts, it's normal for our energy levels to fluctuate throughout the day, and random short bursts of energy can be a normal part of this cycle. This phenomenon can be attributed to several factors, ranging from hormonal fluctuations to your daily habits.

According to research published by the National Institute of Mental Health, increased daylight in the spring can significantly influence human mood and sleep patterns. So, what happens to your body in spring as the world reawakens from winter's chill? Your physiology responds in fascinating and complex ways to the changing environment.

According to a study published in the *International Journal of Endocrinology*, sleep can significantly influence appetite-regulating hormones. This hormonal shift is one of the key reasons behind the common question: **Why am I not hungry when I wake up from a nap?** This article will explore the surprising science behind your post-nap appetite.

As temperatures drop, it's not just a myth that your body feels different. Physiologically, colder weather can trigger a cascade of changes in the body, including decreased muscle performance and fatigue, which contributes to the feeling of overall weakness. This happens as your body works harder to maintain its core temperature, diverting blood flow from the extremities.

According to the CDC, over a third of U.S. adults report not getting enough sleep on a regular basis. For many, the debate over what's more important, exercise or sleep, is a daily struggle that impacts overall health and wellness.

Comprising the brain's principal source of serotonin, the raphe nuclei exert a profound influence on our central nervous system. So, what is the function of the Raphae, the common misspelling of 'raphe,' and how does this tiny cluster of brainstem nuclei orchestrate such a wide array of physiological processes, from mood to pain perception?