black and white exercise equipment

Your mind is a tool. Sharpen it!

Specializing in training, testing, and psychological support to increase success for mental health providers, educators, and athletes.

Featuring strength-based approaches with many years of proven effectiveness.

Unsolicited comments from former students:

"I wanted to reach out and let you know how much of an impact you've had on me and my counseling education. I truly appreciate the way you always challenged me and focused on teaching information that was practical and applicable."

"Although this was not my favorite subject, Dr. Trenhaile's instruction gave me a sense of satisfaction. He is truly a master teacher with the ability to teach any subject effectively. It is clear that his standards and expectations are set high and he meets these himself with excellence."

Unsolicited comments from an athlete & coach:

"Just wanted to let you know how thankful I am for you working with me. I appreciate the time you took and how much you cared! You are very good at what you do and I honestly wish our team could hire you to work with everyone! You have no idea how thankful I am to be able to play the game I love again!

"One of my athletes did have one of their best days ever. She told me that was the most relaxed she has ever been during competition. She did use one of your exercises right before competition. Thanks again!"

A clinically-trained professional delivering structured, proven interventions and training on a number of topics —not intuition.

Click here to read Dr. Trenhaile's most recent published journal article on working with injured student-athletes - https://thesportjournal.org/article/pilot-study-of-the-efficacy-of-eye-movement-desensitization-and-reprocessing-emdr-intervention-for-injured-division-i-student-athletes/

Upcoming Workshops and Training Opportunities

Assessment Principles for Counselors: Preparing for national tests

June 11, 2026

Brookings, South Dakota

low angle view photography of a gray building
low angle view photography of a gray building
pink metal frame photo
pink metal frame photo
white building
white building

Well-Being and Mindfulness Training for School Personnel

June 10, 2027

Brookings, South Dakota

Well-Being and Mindfulness Training for School Personnel

June 10, 2027

Brookings, South Dakota