Health portal
From age thirty onward, it’s worth looking at different values.
From thirty onward, it is worth looking at other values The essentials at a glance Nothing happens in the body at thirty that begins on a birthday. What changes is the entitlement: According to the guideline, between the ages of...
The check-up from age 35: which values it includes
The check-up from age 35: which values it includes The essentials at a glance Many people expect the health examination to include a comprehensive blood count. What it actually provides for is set out in a guideline and is more...
The second blood test answers what the first one shows.
The second blood test answers what the first one shows The key points at a glance A single laboratory value systematically leaves one question open: whether it is a condition or an outlier. This is not a weakness of the...
Calcium in the blood says little about the bones
Blood calcium reveals little about the bones The key points at a glance Calcium and bones belong together. Blood calcium levels and the condition of the bones do so only to a very limited extent. The reason lies in two...
Plant-based iron: why absorption matters
Plant-based iron: why absorption matters The essentials at a glance There are two forms of iron, and they are absorbed differently. The MSD Manual, Professional Edition, describes the difference in two sentences (as of May 2025). This explains why, on...
Interpreting blood sugar after eating correctly
Understanding blood glucose after eating The essentials at a glance Blood glucose rises after a meal. This is not a warning sign, but the process the metabolism is designed for: carbohydrates are converted into glucose, the glucose enters the bloodstream,...
Testosterone in women: how to interpret the level
Testosterone in women: putting the result into context The essentials at a glance Testosterone is not a male hormone with a special female exception. It occurs in women too, at a considerably lower concentration, and appears on hormone test reports...
Interpreting PSA levels correctly: what they indicate and what they cost
Interpreting PSA levels correctly: what they show and what they cost The essentials at a glance The PSA test determines the amount of prostate-specific antigen in the blood (IQWiG, as of January 21, 2026). The antigen comes from the prostate,...
Which blood values does chronic stress alter?
Which blood values chronic stress changes The essentials at a glance There is no laboratory value for chronic stress. The Robert Koch Institute measures stress levels in the population using a questionnaire, the Perceived Stress Scale, rather than a blood...