Start Strong
get 3 cool hiit sessions for just $99
Case Studies
Backed by Science. Proven by Results.
The Cool HIIT system delivers measurable results—boosting testosterone, improving metabolic and cardiovascular health in as little as 21 minutes of working out.
Pounds of Fat Lost
1-2 weekly sessions over 3 months
%
Drop in hbA1c
1-2 weekly sessions over 3 months
%
Average increase of free Testosterone
8 sessions over 2 weeks
VASPER Technology is used during Cool HIIT at Optimal Edge.
The Technology Behind Cool HIIT
SEE WHY PEOPLE LOVE IT
Vasper is my force multiplier tool to achieve optimum fitness, sleep, and vitality without overtraining. The core cooling aspect of VASPER enables me to fully recover in 10 minutes while delivering more oxygen to my body and brain… it’s now a part of my regular priming routine for success.
Tony Robbins
Success Coach
When it comes to time-hacking and getting the equivalent to hours and hours of exercise in just 21 freakin’ minutes, absolutely nothing beats this thing. I can build strength and cardio all in one fast dose, and better yet, feel an amazing surge of growth hormone and testosterone afterwards that sticks with me the entire day!
Ben Greenfield
Fitness Expert + Podcaster
Over the first 15 months of using Vasper more than three times weekly, I’ve gained 6 pounds of muscle,
lost 14 pounds of fat, increased my testosterone score from 379 to 697,
and have enjoyed the most relaxed, energized, creative and productive period of my life. All of this at age 72. [now 80 years old]
Dan Sullivan
Strategic Coach
Frequently Asked Questions
What is Cool HIIT?
Cool HIIT at Optimal Edge is a low-impact, high-efficiency workout that combines a recumbent bike with elliptical-style movement, enhanced by blood flow restriction and cooling technology. The 40-degree chilled cuffs gently restrict circulation, triggering a powerful hormonal response that mimics 2.5 hours of cardio in just 21 minutes—without the stress, sweat, or recovery time. This science-backed approach boosts endurance, accelerates fat loss, and optimizes hormones while keeping cortisol levels low, so you get maximum results with minimal wear and tear on your body.
Do you have showers?
No need! Cool HIIT doesn’t make you sweat, so there’s no need to plan extra time for a shower. You can go straight from your workout to whatever’s next—feeling refreshed, not exhausted.
Where are you located?
We are located inside CityCentral at 17250 Dallas Parkway in North Dallas/Addison, near the Bent Tree Country Club. Our fitness suite is private and has a free parking lot for your convenience.
Will I have a trainer?
No, Cool HIIT at Optimal Edge is a private, self-guided experience, designed for those who value efficiency and autonomy. The technology is intuitive, and you’ll have access to clear, step-by-step video instructions to ensure you get the most out of each session—without needing a trainer.
How do I access the space?
Optimal Edge is a private, 24/7 facility, accessible by appointment only. Once you book your session, you’ll receive secure access through our app, allowing you to unlock the space when it’s your time to train. No waiting, no crowds—just you, fully focused on your workout.
Can anyone do this workout?
Yes, Cool HIIT is safe and effective for most people, regardless of fitness level. It’s low-impact, joint-friendly, and doesn’t spike cortisol, making it ideal for high performers, athletes, and those looking for an efficient workout without excessive strain.
However, this workout may not be suitable if you:
- Have severe cardiovascular conditions or a history of blood clots.
- Use a pacemaker or other implanted medical devices (due to the compression technology).
- Are pregnant or have conditions that affect circulation, such as severe varicose veins or peripheral artery disease.
- Have an active infection, open wounds, or recent surgery in areas where the cuffs are applied.
If you have any concerns, we recommend checking with your doctor before booking a session.