If i run in place fo 20 min and stop every 5 min will my heart rate be in my target zone?

If you ran in place for 20 minutes and stop every 5 mins then your heart rate will be in your target zone

People need to distract themselves with actitives. they can also find a natural high. an example would be eating alot of meat. that meat can release dopamine to the brain which gives one a natural high feeling.