This article explains the mechanics of how the Mightier game system responds to your child's heart rate, and the reasons for those mechanics

Mightier is all about understanding your heart rate, learning how to control it, and practicing bringing your heart rate down over, and over, and over again.
Upon your child's first play experience, the Mightier system is learning about their specific heart rate. It calculates a baseline heart rate which corresponds with the "blue zone," and then sets the "red zone" to be a certain number of beats per minute above that. 
While playing, your child's heart rate will naturally go up and down. When their heart rate rises and leaves their blue zone, it will trigger what we call the "red zone chase." This means that the red zone begins growing. Once your child enters the red zone (or when the red zone catches them), the games become more difficult. A few different things happen at this point. An "inhibitor" is triggered in the specific game they are playing. This could be the timer speeding up, smoke covering the screen, or an inability to aim. By making the game more difficult, your child realizes, "Oh hey, I'm in the red! This just got harder!" At this point Lavalings also come out and begin to cover the screen and block the view. 
At this point, your child will be prompted and encouraged to bring their heart rate down. They can do so all on their own, or they can press the "gizmo" (heart rate gauge) on the screen and follow along with one of Mightier's calming strategies. Upon returning to blue, there is a celebration and your child earns some rewards from the system. They are encouraged to go through that process over and over again while playing and having fun. 

The red zone chase gets faster over time

At the default setting, a child has 30 seconds to notice that they are no longer in their blue zone before the red zone deploys. This speed gets faster over time as players increase their Chill Level (amount of practice they've had) to keep the challenge up. If your child is frustrated while playing Mightier or frustrated with being in the red zone, we recommend reaching out to our Family Care Team. They will be able to manually adjust these settings, giving your child a chance to get comfortable with Mightier under a bit less pressure.


For more information on what your child is doing and learning while playing Mightier checkout our playlist on Supporting Your Child's Mightier Journey.


What’s normal for a child’s heart rate?

At all times when you’re using Mightier, the system constantly learns and adjusts a baseline heart rate that you use while playing the games. This allows us to accommodate the natural variations that we see day to day. The CDC publishes averages for pediatric heart rates, and they have a wide range. Heart rate can vary by external factors, including hydration and when you last ate. If you have questions about your child’s heart rate, you should consult your doctor.
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