Health portal
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...
Elevated gamma-GT: the most common causes and what they mean
Elevated gamma-GT: the most common causes and what follows from them The essentials at a glance An elevated gamma-GT value points to the liver or bile ducts, but it does not identify the cause. The Institute for Quality and Efficiency...
Gene diet is a marketing term, not a technical term.
Gene diet is a market term, not a technical term The essentials at a glance Gene diet is not a scientific technical term but a market designation. It refers to a dietary recommendation based on analyzed genetic variations. The procedure...
Electrolyte loss through sweating: what is actually lost
Electrolyte loss through sweating: what is really lost The essentials at a glance Sweat contains an average of about 900 milligrams of sodium per liter, ranging from 175 to 1,512 milligrams depending on the individual. This is the figure reported...
Zinc deficiency symptoms in women: what is and isn’t proven
Zinc deficiency symptoms in women: what is proven and what is not The essentials at a glance The German Nutrition Society lists skin eczema, diarrhea, impaired wound healing, problems with perception and memory, and increased susceptibility to infectious diseases as...
Healthy Weight Loss Plan: What Really Works Without a Crash Diet
Healthy weight-loss plan: what really works without a crash diet The key points at a glance A healthy weight-loss plan follows a medically recommended range: five to ten percent of the starting weight over six to twelve months. Someone who...
Is non-alcoholic beer really healthy? What it contains—and what it doesn’t
Is alcohol-free beer really healthy? What it contains and what it does not The essentials at a glance “Alcohol-free” is a designation, not a statement of zero alcohol. According to the Federal Institute for Public Health, beverages containing less than...