Free Testosterone in Athletes: Why the Bound Fraction Doesn’t Tell the Whole Story
Key Takeaways: Free Testosterone in Athletes • Free testosterone may provide clinically useful information when total testosterone alone does not…
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Triglycerides in Athletes: Why Low Values Are a Sign of Metabolic Fitness
Key Takeaways: Triglycerides in Athletes • Low triglycerides in athletes are often a reflection of training-related metabolic adaptations rather than…
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HDL Cholesterol in Athletes: What Your “Good Cholesterol” Actually Tells You
Key Takeaways: HDL Chloesterol in Athletes • Higher HDL cholesterol is common in endurance athletes, but HDL should not be…
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Free T4 in Athletes: What Your Thyroxine Level Actually Means
Key Takeaways: Free T4 in Athletes • Free T4 should not be interpreted in isolation in athletes, because training load,…
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HbA1c in Athletes: Why Your Blood Sugar Marker May Be Misleading You
Key Takeaways: HbA1c in Athletes • HbA1c in athletes can sometimes be misleading because exercise-related physiology may influence the result…
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Sleep for Athletes: The Complete Guide to Sleep Disorders, Sleep Science, and Evidence-Based Recovery
Introduction: Why Sleep for Athletes Is a Performance Variable, Not a Lifestyle Choice Sleep is an important recovery and performance…
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Aldosterone in Athletes: What Your Blood Test Is Actually Telling You
Introduction: Why Aldosterone in Athletes Is Frequently Misinterpreted Aldosterone is a clinically important hormone. Many medications that affect blood pressure…
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CK-MB in Athletes: Why This “Cardiac Marker” Routinely Rises After Hard Training
Introduction In clinical practice, I may occasionally encounter a situation in which cardiac markers need to be tested in an…
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Phosphate in Athletes: What Abnormal Values Actually Mean
Introduction Serum phosphate in athletes may provide clinically relevant information in blood work when interpreted in context. Phosphate plays important…
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The Cortisol Awakening Response in Athletes: What Morning Cortisol Reveals About HPA Axis Health and Overtraining Risk
Introduction In clinical sports medicine, the evaluation of training-related fatigue, recovery capacity, non-functional overreaching and overtraining syndrome remains a clinical…
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Calcium in Athletes: Muscle Contraction, Bioavailability, Stress Fractures, and the RED-S Connection
Introduction Calcium is the most abundant mineral in the human body, yet it remains among the most consistently under-consumed nutrients…
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Albumin in Athletes: What Low Levels on Your Blood Test Really Mean
Introduction In my clinical work, I often notice that many patients — and even athletes — associate albumin primarily with…
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Chloride in Athletes: Interpreting a Neglected Electrolyte
Introduction Chloride is often an overlooked electrolyte in clinical practice. When electrolytes are discussed, the focus is typically on sodium…
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Stretching for Athletes: What Works, What Doesn’t, and When Isometric or Eccentric Training May Be More Useful
Introduction: Why Stretching for Athletes Deserves a Closer Look Stretching is one of the most widely practiced routines in sport….
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Myoglobin in Athletes: Oxygen Storage, Muscle Damage Marker, and Clinical Interpretation
Introduction Elevated myoglobin is often one of the first findings that raises concern for clinicians. In the context of myoglobin…
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Potassium in Athletes: Interpreting Serum Potassium Across the Exercise Cycle
Why Potassium in Athletes Requires a Different Interpretive Framework Potassium is the body’s principal intracellular cation, with roughly 98% of…
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Sodium in Athletes: What Your Blood Work and Sweat Really Tell You
Introduction In the general population, sodium intake is often higher than necessary, and reducing excess salt is commonly recommended due…
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Vitamins for Athletes: What Actually Matters, What You’re Wasting Money On, and What Can Hurt You
Introduction It is entirely natural for athletes — and patients more broadly — to want to maximise their performance. They…
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Cortisol in Athletes: What Your Blood Test Is Actually Telling You
Introduction: Why Cortisol in Athletes Has a Reputation Problem Cortisol is one of the most frequently blamed hormones in health…
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Testosterone in Athletes: What Your Blood Work Is Actually Telling You
Introduction When I work with athletes or review their blood work, I find that the conversation around hormones almost always…
