DAY 4 will challenge your core muscles more than previous days did. Jump into the flow of this short core strength routine to eliminate the physical and mental stress of the long workday. Overcoming challenges is a great way to build strength and confidence and thus resilience. Remember to choose the right level of exercises to match your current state though. The goal is to empower by getting stronger, so avoid overstraining. Slow and steady wins the race when building core strength. I hope you enjoy!