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About Us


Hi, my name is Dr. David Glass. I’m a retired vascular surgeon and the Founder of HackStacks. I had already had a long career in conventional medicine when I stopped practicing it was after 35 years.
As you imagine, being a surgeon requires tremendous focus and for many of us can be incredibly stressful. During those long days, I struggled with occasional fatigue, and on many afternoons after several back-to-back surgeries I would experience what people now call brain fog.
And it wasn’t just me – over the years I heard similar problems from colleagues as well as many of my high-profile patients. 
Personally, I knew that I couldn’t continue that way. Over time my cognitive problems became worse, not better. I finally decided to apply my scientific training and began experimenting using myself and a few friends as guinea pigs. 
After trying lots of different things, I finally discovered my own secret combination of little-known nutritional supplements and ancient exotic herbs. Adding this to my daily routine helped me penetrate my brain fog and regain the sharp mental edge I desperately needed to be effective as a healer.

Now I am in the rewarding position to offer relief to people who need to do the same thing for themselves. 
I want to introduce you to a word you may not have heard before: nootropic. Nootropic combines the Greek words noos, which means “mind” or “thought” and “tropicos” which is translated to mean “change.” Nootropics are special nutritional supplements that may improve learning, decision making, memory, focus, creativity, confidence, and motivation. 
Here’s another word that’s even newer: biohacking. Some people refer to this as “do it yourself biology.” It's also called “personal science.” Biohackers believe your health and performance are results steming from dozens of lifestyle choices you make daily. Biohackers consider questions like what foods make you smarter, which foods do the opposite making you less smart, what exercises boost your energy and which slow you down, and how much is too much sleep and how much is too little. And of course, they wonder what nootropics put you into high gear and give you what some people call, “an unfair advantage.” 
I’m glad you came to our store because you need to know about these things. Unfortunately, you can’t get this information from your average M.D. Nootropics, biohacking, brain optimization... these critical subjects aren’t as part of any medical school curriculum and may not be for another 20 years, if ever.
When I became a physician, I swore to uphold the Hippocratic oath and do my best to help patients. Over the past few years since I retired from medicine, I’ve focused my attention on the development of a novel nootropic supplement: it’s called Cognamind.
Cognamind contains a balanced profile of mind enhancing and brain supporting ingredients – we call this a stack. The ingredients in the Cognamind stack work together synergistically to give you the best possible cognitive results. Cognamind’s ingredients have been shown in human clinical trials to support mental clarity, concentration, focus, memory, confidence, and the ability to more easily learn new material. 
Cognamind is perfect for entrepreneurs, professionals, executives and students looking for a performance edge, as well as people who worry about declining cognitive functions and even “brain fog.” 
Cognamind is Hackstack’s first cognitive enhancement product. Later this year we will be introducing additional nootropics and biohacking stacks. We know you have options and we are confident you will love the way you feel using Cognamind. 
I welcome all your feedback and any thoughts you have about our products. 
To your optimal health and peak performance, 
David M. Glass, M.D.