Drinking hot water in the morning is a practice used in Traditional Chinese Medicine and Ayurveda to "wake up" the digestive system.

The digestive system is essential to helping your body break down food so that it can adequately retrieve nutrients and vitamins while also getting rid of waste. It’s composed of the following organs: ...

Acidity, reflux and heartburn can be daily struggles for many people. However, Riya stresses that it shouldn't be normalised.