Jayvera on Ultrahuman Bloghttps://www.ultrahuman.com/blog/author/jayvera/Recent content in Jayvera on Ultrahuman BlogHugoen-USTue, 17 Jun 2025 13:11:39 +0000Your circadian rhythm and sleep-wake cycle explainedhttps://www.ultrahuman.com/blog/what-is-circadian-rhythm/Fri, 16 May 2025 19:41:30 +0000https://www.ultrahuman.com/blog/what-is-circadian-rhythm/<p>Humans have evolved to live in sync with Earth&rsquo;s 24-hour day-and-night cycle. As a result, nearly every cell in the human body operates according to a daily fluctuating schedule, called a circadian rhythm.1</p> <p>Circadian rhythms affect our sleep-wake cycle, energy levels, food metabolism, and general health. Living in tune with our circadian rhythm can <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC11221196">lead to increased energy</a> and alertness and is linked to longevity. Living out of sync with that cycle is interpreted as a “disruption” by the body and is linked to a host of <a href="https://pubmed.ncbi.nlm.nih.gov/36750239/">negative cardiovascular and metabolic health outcomes</a> .</p>