Fitbit’s AI coach is going global, turning your cardio fitness data into clear, personalized insights you can actually understand and act on.

Some fitness trackers may detect signs of heart disease, sleep problems, and chronic stress. However, there are limitations and risks to consider.

Device snapped into underwear monitors flatus frequency in real time to set a new baseline for what’s typical and gain insight into microbiome activity.

Acarix CEO Aamir Mahmood moved his medical tech company to Oklahoma City to improve heart health with a novel diagnostic tool.

In most people, carbon dioxide and hydrogen—not methane, Hall stresses—make up the bulk of farts. All that hydrogen comes from microbes breaking down beans, greens, and other gassy foods. “If you see ...