Technology that is not in existence yet…. An Indulgence Navigator to provide real-time updates that help you avoid cravings.An Indulgence Navigator to provide real-time updates that help you avoid cravings.

A wearable device could use people’s genetics and psychological profile to track their cravings and help them to avoid eating unhealthy foods during moments of weakness.

The Indulgence Navigator would present biometric data through augmented reality. If you’re about to open a candy bar and your heart rate and saliva levels spike, the device could send you an alert.

It also works for recreational drugs, say, to learn how a strain of cannabis will affect you.