Learn what a legitimate service should include, from safety inspections for carbon monoxide to electrical checks.

With this multipurpose health testing device, you can measure your body temperature and blood oxygen saturation, take an ECG, and listen to your heart and lungs with a pair of headphones.

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. The sitting-rising test measures how well you can sit ...