Stay Fit

How devices in biofeedback send you signals:
The devices and instruments help us to discover other areas of feedback our body gives us naturally. For instance, if you notice stress elevating after arguing with a friend, then your body is sending you signal, feedback, which tells you to avoid arguing.

How common sense is left behind:
Common sense helps us to receive feedback from our body and minds. Yet, again we are desensitized from the worldly activities, influences, and media and so on. Now, common sense is harder to achieve, since what we think is wrong, is not wrong according to the societies or laws way.