Giorgos Aristotelous

Giorgos Aristotelous

About

Giorgos, BSc, MSc. Giorgos is an exercise scientist whose training and professional practice sit at the intersection of human performance, clinical health, and emerging microbiome science. He holds a BSc in Sports Science and Physical Education from Aristotle University (2012) and an MSc in Exercise and Health from Democritus University (2016), where his graduate work explored physiological adaptations to training across the lifespan. Now in his 15th year of practice, Giorgos pairs evidence-based coaching (ACSM-CPT, NSCA, USA Weightlifting) with a research-driven interest in how physical activity, body composition, and musculoskeletal integrity shape, and are shaped by, host-microbiome dynamics.

Recent Posts

2026-06-27

Endometriosis

Endometriosis involves ectopic endometrial tissue causing pain and infertility. Validated and Promising Interventions include Hyperbaric Oxygen Therapy (HBOT), Low Nickel Diet, and Metronidazole therapy.

2026-04-08

Resistance Training Reshapes Gut Microbiome in Sedentary Adults

An 8‑week resistance training intervention in 150 sedentary adults enriched health‑associated gut bacteria (Faecalibacterium, Roseburia hominis) in high‑strength‑gain responders, independent of diet. Alpha diversity unchanged, but within‑individual shifts correlated with strength gains.

2026-03-09

Intestinal permeability in athletes: Zonulin-Independent Mechanisms Revealed

This study of 38 athletes found that intense training increases intestinal permeability, but surprisingly, elevated stool zonulin did not correlate with permeability. Many athletes showed permeability without high zonulin, suggesting exercise damages gut barriers through mechanisms independent of the zonulin pathway.

2026-03-01

Heavy metal excretion in sweat: Exercise Superior to Sauna in Controlled Study

This rigorously designed study compared heavy metal excretion in sweat from treadmill running (5-10 km/h, 25°C) versus sauna exposure (45°C). Exercise produced significantly higher concentrations of nickel, lead, copper, and arsenic, indicating dynamic activity may enhance detoxification more effectively than passive heating.

2026-01-17

Graves’ Disease (GD)

OverviewGraves’ Disease (GD) affects approximately 0.5% of the population, predominantly women. First-line treatment options—antithyroid medications, radioactive iodine, and surgery— often result in significant side effects, incomplete remissions, and frequent relapses. Further, current first-line treatment options focus on symptoms management, and reflect an inadequate understanding of the etiology of the condition. However, recent research reveals a […]

2025-12-04

Chronic Kidney Disease (CKD)

Dysbiosis in chronic kidney disease (CKD) reflects a shift toward reduced beneficial taxa and increased pathogenic, uremic toxin-producing species, driven by a bidirectional interaction in which the uremic environment disrupts microbial composition and dysbiotic metabolites accelerate renal deterioration.

2025-11-16

Resistance (Strength) Training

OverviewResistance (strength) training appears to exert modest but meaningful effects on the human gut microbiome. Unlike aerobic exercise, which often leads to pronounced changes in microbial diversity and taxonomic shifts, short-term resistance training tends to result in minimal changes in overall microbiome composition or alpha-diversity. However, this does not indicate a lack of functional impact. […]

2025-07-29

Graves’ Disease Gut Microbiome Signature: Key Genera and Clinical Implications

This prospective study identifies a unique gut microbiome signature in Graves’ disease, characterized by decreased SCFA-producing bacteria and increased pro-inflammatory taxa, which partially recovers with antithyroid therapy. Twelve genera robustly distinguish GD, offering potential for early diagnosis and microbiome-targeted interventions.