Apple reveals the secret fitness lab it has been using for TWO YEARS

1. Lab has been running in this unmarked building for two years 
2. Apple employees wear special masks and equipment to monitor breathing
3. Were not told what they were testing - and used covered Apple Watches 
4. Fitness app was installed by Apple as part of this week's iOS 8.2 update 

Apple also visited different locations around the globe in order to conduct more in-depth tests for its upcoming, health-focused wristwearable in a variety of extreme environments: 

'We have traveled to Alaska and gone to Dubai to really test Apple Watch in all those environments,' said Jay Blahnik, Apple's director of fitness and health technologies.

On the back of the Watch's case is a sensor (pictured) that uses infrared 

and visible-light LEDs and photodiodes to detect the wearer's heart rate

Apple Watch uses this sensor, along with an accelerometer and the GPS and Wi‑Fi in a connected iPhone, to measure physical movement such as steps, distance and calories. 

Lets take a look what Apple Watch can do for your life:D

Credit to DailyMail