Final answer:
Setting an alarm to stand once an hour is the best replacement habit for Luca to try.
Step-by-step explanation:
The best replacement habit for Luca would be to set an alarm to stand once an hour.
This way, Luca can break up his sitting time and avoid prolonged periods of inactivity which can negatively impact his health. Standing once an hour will help improve blood circulation, increase energy levels, and promote better posture.
Other options like standing every 10 minutes or standing all day at a standing desk may not be practical or sustainable for Luca, while going on a run during his lunch break may not address the issue of excessive sitting throughout the day.
Learn more about Replacing unhealthy sitting habits with standing