It's a feeling 15-year-old Damon Miller is used to: tension, a racing heart, and clenched teeth.

Damon's not having a heart attack, he's angry.

For almost four months his anger festered as he sat in the Orange County Jail accused of Armed Robbery.

Dr. Dick Tibbits, Author of "Forgive to Live" says, "if you hold onto your anger one of the things we know for sure is it'll elevate you blood pressure."

Dr. Dick Tibbits is with Florida Hospital, he says over time anger can lead to heart disease, and the best way to deal with it is forgiveness.

Dr. Tibbits says, "we know by effectively dealing with your anger you can improve your health and reduce the risk of heart disease."

To put his book to the test, nine teens in the youthful Offender Program at the Orange County Jail spent several weeks studying it.

16-year-old Jeff Noel said, "I just realized what was going on and I can't blame anyone else for what happened to me."

All of these teens say this book changed their lives. They say the most important thing they learned is that forgiving does not mean forgetting.

John Richter of the Youthful Offender Program Coordinator said, "it really opened their eyes because a lot of the time they come in here and never see their victim and there is another way for them to understand what they've done, learn from it and go on, so it doesn't happen again."

Damon says his blood pressure dropped since reading the book and even though he doesn't know how long he'll be here, he plans to get his GED and maybe even continue on to study law.

Dr. Tibbits says it typically takes about 6 to 8 weeks to learn forgiveness.

When it is applied to your life he says you should see your blood pressure drop significantly.

That's a look at You Health,

Nancy Gay, Central Florida News 13.