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A single testosterone value says little. Which symptoms matter, which five blood values tell the story together, and which dials you can actually turn.
What does your testosterone result actually mean? How to read total, free and SHBG together, and which reference ranges fit each age.
The ESR measures how fast your red blood cells sink. That makes it slow, sensitive to anaemia and easy to misread. Here...
Your zones almost certainly come from 220 minus your age. That sum was taken apart in 2001. Here is how many beats it co...
How many calories to gain weight? A surplus of 200 to 400 kcal above maintenance builds muscle mass without needless fat...
MCH measures how much haemoglobin sits inside a single red blood cell. A low value often points to iron, but a normal MC...
A hard training session can push your white blood cells above the reference range for hours. Here is how to tell whether...
Your Whoop or Oura measures movement, heart rate and temperature. What it does not measure: your hormones. The honest co...
A complete blood count measures your red cells, white cells and platelets. What almost nobody tells you: your training s...
Your morning value is the noisiest one you own. Your hormones push it up before you wake, even if you are perfectly heal...
Grip strength predicts more than your calendar age across large cohorts. It takes thirty seconds and costs nothing. What...
Awake at three every night? Waking briefly is normal, staying awake is not. The causes, plus when this becomes a questio...
Visceral fat responds early to an energy deficit. Here is how to approach it, and how to see change before the scale sho...
Calculate macros from your calories: protein first, then fat, carbs fill the rest. See the ratio that suits your goal, w...