Cycling & CGM — spikes, crashes, and loss of focus A 36-year-old cyclist trains with a Continuous Glucose Monitor (CGM). During long rides, he experiences significant blood sugar spikes.
Fermentation & SCFAs — recovery via HRV A 32-year-old amateur cyclist faithfully follows her training schedule. However, she notices that her recovery is taking longer and longer. Her HRV
Allergy or mast cell activation? The hidden difference A 34-year-old woman visits her doctor with complaints of itching, redness, bloating, and headaches. She thinks that
When soccer players plateau: the invisible ceiling Many soccer players experience a point where their game stops improving. They train hard, play matches, but
VO₂max & surgery prep: why lung capacity affects your recovery A 61-year-old woman is scheduled for knee surgery. During the pre-op screening, it's noticed that her VO₂max
VO₂max & longevity: why lung capacity reveals your biological age A 55-year-old man still feels fit, but his annual check-up shows a low VO₂max.
Low-fiber diet & stress sensitivity — HRV as a warning signal A 45-year-old manager experiences a lot of stress at work. Her wearable shows that her HRV systematically
From takeaway meals to the injury bench: the hidden toll of emulsifiers A young soccer player moves to another country to further her career. For
Triathlon & microbiome: when lactate becomes fuel rather than waste A 42-year-old triathlete trains for months for an Ironman. During the long cycling stages, his lactate level rises.
Tennis & HRV — stress als verborgen tegenstander Een 28-jarige tennisser gebruikt een wearable die HRV meet. Op wedstrijddagen ziet hij lage waarden (< 40
Red wine, histamine, stomach acid, and mast cells: more than just a harmless glass A 41-year-old man enjoys a glass of red wine with dinner. Shortly afterwards
Padel & sweat — cramps and exhaustion A 34-year-old padel player uses a wearable device that analyzes sweat. His data shows high salt loss (Na > 2000 mg/L).
Oxalates – hidden crystals as pain triggers A 40-year-old woman experiences headaches and abdominal pain after meals containing spinach, nuts, or dark chocolate. She thought she was eating healthily.
Restlessness and worrying: when your mind won't settle A 28-year-old man lies in bed at night, but his thoughts continue to race. During the day, he experiences
Migraine – the brain in turmoil A 35-year-old man has been suffering from migraine for years. The attacks are unpredictable: throbbing headaches, nausea, and sensitivity to light. Medication
Mast cells, insomnia, and eczema between the fingers A 29-year-old man suffers from insomnia and eczema between his fingers. He often wakes up around 3 a.m.
Marathon preparation by a middle-aged CEO: success or injury? A 48-year-old CEO decides to run a marathon. As in business, he approaches the plan in a structured manner.
Long COVID & mitochondrial depletion — energy on the ground A 29-year-old marathon runner experiences extreme fatigue after a mild COVID infection. Training sessions that used to be a matter of course,
Long COVID & brain fog — the brain in the fog A 39-year-old consultant appears to be recovering well from a COVID infection. Yet the symptoms remain: concentration problems, memory loss
Carbohydrate digestion: decisions that cost you the second half A midfielder plays flawlessly in the first half. In the second half, things go wrong: slow reactions, wrong
Itchy scalp: more than just dandruff A 39-year-old woman has been experiencing an itchy scalp for months. Anti-dandruff shampoo helps temporarily, but the symptoms return.
Itchy ears: a signal from the microbiome A 46-year-old man complains of recurring itching in his ears. Sometimes there is flaking, sometimes discharge.
Jet lag: the invisible opponent for soccer players A young player from Latin America travels to Europe to join his team. Two days later
Golf & sleep — the invisible handicap A 52-year-old golfer tracks his sleep. His wearable shows only 30 minutes of deep sleep per night, despite 7
1. Cases Migraine & dietary triggers Migraine often comes unexpectedly and seems unpredictable. However, diet, microbiome, and immune crosstalk play a greater role than previously thought. In this
