This device claims to 'hack' your metabolism. I tried it for two weeks to find out.
This device claims to ‘hack’ your metabolism. I tried it for two weeks to find out.
It’s 9 a.m. and a small breathalyzer-like device called a Lumen — which looks sort of like a bulbous silicone vape — is about to tell me what I already know. I sleepily inhale through it, hold my breath for 10 seconds, then exhale back through the device and …
