Health technology
Gut microbiome tests: what can the report actually tell you?
A list of microbes, a comparative score and a useful clinical decision require different evidence. Testing research explains the gaps between them.
Healthcare Edition / Coverage
Patient guides · Page 3
Clear starting points for patients and travelers, with sources and scope made explicit.
Health technology
Period apps: tracking a cycle and preventing pregnancy are different jobs
Logging a period, forecasting a fertile window and estimating ovulation are different functions. Intended use and version-specific evidence determine their limits.
Health technology
Sleepio and sleep trackers answer different questions
A digital CBT-I programme aims to treat insomnia; a tracker summarises sleep. NICE’s evidence and recommendation show why the distinction matters.
Health technology
Pulse oximeters and skin tone: why the number needs context
Light-based oxygen estimates can be affected by pigmentation, fit and circulation. UK and US guidance explains what a reassuring display cannot settle.
Health technology
How much can you trust a smart scale’s body-fat number?
Weight, body-fat estimates and changes over time are different tests of a smart scale. Validation studies show why a repeatable number can still be wrong.
Health technology
Could menstrual fluid help diagnose endometriosis?
A small study found gene-activity signals in menstrual fluid. The useful question is how a promising biological signature becomes a reliable test for people with symptoms.
Health technology
What can polygenic embryo screening actually predict?
Genetic risk scores rank probabilities, not a future child’s health. Here is how PGT-P differs from other embryo tests, where its evidence falls short and what the UK regulator says.
Health technology
Wegovy without the needle: what changes with a pill?
Oral Wegovy changes the treatment routine as well as the delivery route. UK product information explains what the tablet evidence does—and does not—show.
Health technology
The two kinds of help inside AI glasses for sight loss
Generated descriptions and live video calls to people offer different kinds of assistance. Here is how those routes differ on supported Meta glasses.
Health technology
When your Oura ring meets your blood test
Health Panels puts external laboratory results beside wearable data. Booking a blood draw, uploading a report and interpreting the result remain separate steps.
Health technology
Your Apple Watch detected a fall. What happens next?
Movement, settings, a countdown and a working connection all matter between a fall alert and a call for help. Apple’s documentation explains the sequence.
Health technology
What a food photo leaves out of your calorie count
Recognizing a meal is only one part of estimating its energy. Research separates the food label, portion size and calculation behind the number.