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Sleep is a fundamental biological process essential for maintaining physiological homeostasis. It is intricately linked to various systemic functions, including neurocognitive operations, metabolic regulation, immunological response, and cellular regeneration. Sleep architecture is primarily categorized into two distinct phases: Non-Rapid Eye Movement (NREM), which is critical for physical restoration and tissue repair, and Rapid Eye Movement (REM), which plays a pivotal role in memory consolidation and emotional regulation.

Did you know that “zombie cells” may be accumulating in the body without us realising it?

Telomeres are specialized structures composed of DNA-protein complexes situated at the terminal ends of chromosomes. They play a critical role in safeguarding chromosomes from degradation and preventing end-to-end chromosomal fusion.

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Telomeres are specialized nucleoprotein structures located at the terminal ends of chromosomes. Their primary function is to safeguard genetic information, preventing genomic degradation during cell division. The existence of these protective caps was first identified by Hermann Muller and Barbara McClintock through their respective studies on Drosophila and maize. They observed a unique terminal structure that prevents cells from identifying chromosome ends as damaged DNA, thereby inhibiting abnormal end-to-end fusion or enzymatic degradation.

Telomere Length and Cardiovascular Health: A Critical Biomarker for Biological Aging and Disease Pathogenesis. Telomeres are specialized nucleoprotein caps situated at the terminal regions of chromosomes, essential for safeguarding genomic integrity. These structures progressively undergo attrition (shortening) with each successive cell division, a process that accelerates with chronological age. When telomeres reach a critical threshold of shortening, cells enter a state of permanent growth arrest known as cellular senescence, ultimately leading to apoptosis (programmed cell death). This depletion of viable cells significantly impairs the body’s regenerative capacity and tissue repair mechanisms.