Ankur Warikoo suggests that persistent exhaustion, even with healthy habits, stems from 'invisible habits' that drain energy. He argues that saying 'yes' when one wants to say 'no,' excessive social media consumption, and constant overthinking are significant energy depleters. Warikoo advises swapping energy-draining activities for energy-giving ones, such as reducing mindless scrolling, engaging with nature, and mindful eating, rather than adding more self-care routines.