Performance Medicine by a Doctor & World Champion
Scientific research applied to human performance. Evidence-based insights from someone who’s lived both in medicine and elite competition.

What Makes This Different
This site is written by a licensed physician in Finland who also holds a Masterβs in Industrial Engineering and Management and has competed internationally in combat sports. The aim is to bring together what the research shows, what I see in clinical work and what I learned as an athlete, and to be clear about which is which.
Performance Medicine Built on Evidence
Every article is researched from peer-reviewed sources, fact-checked against those sources, and reviewed by me before it is published. My own clinical experience is marked as such and kept separate from what the research shows.
Start Here
New to the site? These guides cover the core topics: blood tests, performance and recovery.
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Latest Research-Based Articles
Explore health articles
From athletic blood work interpretation to overtraining markersβscientific analysis, clinical insights, and practical context for performance and health.
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Tennis Elbow Treatment: What Works, What Backfires and What the Evidence Shows
Tennis elbow is a common cause of pain on the outer side of the elbow. In a representative Finnish population sample of 4,783 people aged 30β64, definite lateral epicondylitis was found in 1.3%, with no difference between men and women and the highest prevalence at ages 45β54.
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Upper Back Pain: Causes, Warning Signs and What the Evidence Says About Treatment
Upper back pain receives less research attention than neck pain and low back pain. A systematic review of 33 studies pointed out that the thoracic spine has received less attention in clinical, genetic and epidemiological research, even though pain in this region can be equally disabling.
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Normal Sinus Rhythm: What It Really Means on Your ECG, and Why “Normal” Is Wider Than You Think
“Normal sinus rhythm” is probably the most reassuring phrase on an ECG report, and one of the most misunderstood. Some people read it as a full clean bill of heart health. Others worry when their smartwatch reports a heart rate of 48 next to the same words.
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Tension Headache Relief: What Actually Works, According to the Evidence
Tension-type headache (TTH) is the most prevalent neurological disorder worldwide. Global Burden of Disease data show that the absolute number of people with TTH reached 2.01 billion in 2021, 56.4% more than in 1990, and that global prevalence peaked at around 32.5 years of age.
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Erythrocytosis: Causes, Thrombosis Risk, and What a High Hematocrit Means for Athletes
Erythrocytosis is often discovered incidentally on a routine blood test. In Canada, up to 4% of ambulatory men and 0.4% of ambulatory women have erythrocytosis, based on hemoglobin levels greater than 165 g/L or 160 g/L, respectively.
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Is Vitamin Water Good for You? What the Research Says About Sugar, Vitamins and Hydration
Vitamin water sits in the cooler right next to plain water, and its labels talk about energy, focus and defence. The name suggests water plus a dose of nutrition.
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Evidence-based articles grouped by subject, from blood tests to sports injuries.

