This page describes how B3 Works. The B3 web app offers a responsive interface that adapts to any device, whether a computer or a smartphone.


Main Screen Structure
The main screen is divided into four main areas:
- Login
- Menu
- Exercises
- Navigation
Login Area
B3 uses a two-factor authentication system without passwords.

To log in, the user enters their email in the designated field and presses the button labeled A. The system generates a PIN sent via email, which must be entered in the corresponding field before pressing button B to complete the login (button C cancels the operation). To log out, simply press button D.


If the email address is not registered, the system prompts the user to complete the registration process, requiring first name, last name, preferred language (Italian or English), and the option to receive updates. Pressing button B (button C cancels the registration) generates a PIN sent via email. Entering it and pressing button D completes the registration.
Menu Area

The menu contains the following options:
- Blog: Access the blog dedicated to B3
- Help: Open the help window (as shown in the figure)
- Privacy: Access the privacy policy
- Contact Me: Send an email to support
Exercises Area
This section lists the available exercises.

Each exercise is represented by a box containing:
- A: A short name indicating the duration of the breathing phases
- B: The full name of the exercise
- C: An icon showing whether the exercise is available to all users (unlocked) or only to registered users (locked)

Once an exercise is selected, the dedicated screen provides the following controls:
- D: Return to the main screen
- E: Enable audio
- F: Lower the volume / Mute audio
- G: Increase the volume
- H: Open the exercise information screen
- I: Disable numerical counting
- L: Disable background music
- M: Activate automatic mode, which gradually disables counting, music, and voice guidance
During the exercise, the screen displays the total elapsed time (top right), the number of cycles (bottom left), and the breathing phase (bottom center). Pressing button M to activate automatic mode resets the total time and cycle count.
Navigation Area
Below the list of exercises, buttons allow users to scroll through the available options.