Global health is in trouble. Older people are more at risk. Dangerous diseases like drug-resistant tuberculosis (TB) are spreading quietly. And we're not doing enough to prevent illness through simple things like eating well and staying active. Scientists in Sweden and South Africa found a new way to detect TB in breath. It's not perfect, but it's a start. About hal...

Tuberculosis, or TB, is a sneaky disease. It can hide in the body, making it tough to spot. Doctors often use sputum cultures to find TB bacteria. But sometimes, these tests come up empty, even when TB is present. This is where things get tricky. New, super-sensitive tests like GeneXpert MTB/RIF Ultra can pick up TB DNA in sputum samples that cultures miss. But what ...