New Delhi, Aug. 26 -- Walk into Ultrahuman's 'Performance Lab' in Bengaluru's Indiranagar and it is easy to forget that you are there for a health check-up. There are no crowded waiting rooms, numbered tokens or long lines outside a doctor's cabin. The space feels closer to a high-end wellness studio. But before a doctor sees you, a different kind of examination begins: you are asked to fill out a detailed questionnaire about your sleep, diet, medications, health history, daily routine and personal goals, and give the company consent to use your health data.

You change into a T-shirt and joggers and move through a battery of tests. There are blood and genetic tests, gut analysis, cardiopulmonary assessments, a DEXA scan and other measure...