Increase Your Stamina By 81%

Published: September 24, 2025
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Dr. T's Smart Energy Capsules

What if there was an easy, natural way to increase stamina by 81%? There is!

You’ve probably heard about the remarkable energy-boosting effects of herbs like ashwagandha and rhodiola, especially when used in the right forms and doses. Research shows that glycyrrhizin (from licorice), green tea extract, and schisandra can also significantly enhance healthy energy levels.

Curious about the impact of combining these five powerhouses together with ribose, I launched a study with 70 people suffering from severe, long-term fatigue. On average, they had lost 69% of their stamina and 63% of their energy for a median of 17 years, and nearly half (46%) developed their condition after a viral infection.

Results showed whopping average increases in key metrics:

  • 81% increase in stamina
  • 60% improvement in energy
  • 41% improvement in sleep
  • 28% decrease in pain and
  • 42% improvement in memory and cognition

The five powerhouse herbs behind these results are now combined as "Smart Energy Capsules," and deliver the benefits in just two capsules each morning. For a limited time, I’m offering them at 50% off the regular price, which works out to about 50 cents a day. This is an easy and affordable way to rediscover what vibrant energy and steady stamina really feel like!

The Power of Adaptogens

The trouble with typical energy boosters is that they can leave you feeling “wired and tired.” The better approach? Adaptogens. Rather than simply revving you up, adaptogens help your body find its natural balance.

If your adrenal activity is too low, they gently lift it. If it’s too high, they calm it down. In short, adaptogens restore equilibrium—creating steady, healthy energy instead of a temporary jolt.

Two excellent adaptogens are the herbals Ashwagandha and Rhodiola.

Smart Energy Capsules—1st Half of the Smart Energy System™

Smart Energy Capsules are normally sold with S.H.I.N.E.® D-Ribose as a special bundled pairing called the "Smart Energy System™." It provides five of the six important nutrients in this supplement system, with D-Ribose being the sixth. The five powerful nutrients in the Smart Energy Capsules are:

  1. KSM 66 Ashwagandha. This herb is the most popular herb in Ayurvedic medicine. For good reason! Numerous published studies show that it helps mood and calming, cognition, thyroid and sex hormone function, stamina, sleep, and libido.
  2. Rhodiola. Helps stamina and mental fatigue
  3. Green tea extract. Shown in research to help exercise endurance, insulin sensitivity, and even younger skin.
  4. Schisandra. Protects your energy producing mitochondria.
  5. Licorice (glycyrrhizin). Excellent for adrenal fatigue. It can actually raise blood pressure a bit, which can be helpful for most of you.

By taking two capsules a day, most people see results within 2-3 weeks, often within a just few days—and at less than $0.50 a day while on the current sale. (You can also choose to add a second two-capsule dose at lunchtime or early afternoon, preferably before 2 PM).

This combination helps restore your metabolic and adrenal "motors," so you can make healthy energy.

S.H.I.N.E.® D-Ribose—2nd Half of the Smart Energy System™

Feeling like your energy tank is running on empty? When fatigue sets in, your body’s key energy molecules, called ATP, can become seriously depleted. The good news? You can help replenish them with Bioenergy D-Ribose, the same premium form used in my published research and in S.H.I.N.E.® D-Ribose.

Ribose is the very backbone of ATP, the molecule that fuels every cell in your body. Supplementing with ribose gives your system the raw material it needs to rebuild those vital energy stores and help you feel recharged

Below are the results from a study we conducted on people using the Smart Energy System. All of the key areas related to energy showed significant percentage improvement.

Here are the results from our study of people using the Smart Energy System. Every key measure of energy showed a significant, measurable increase—clear evidence of meaningful improvement across the board.

Change in Scores with Smart Energy System Treatment in Full Sample (N = 70)
Variable Average Percent Improvement
Overall 50.8
Energy 59.5
Sleep 40.9
Pain 27.9
Well-Being 67.6
Mental Clarify 42.2
Stamina 80.7

Want to Boost Your Energy Even More?

If you’re ready to take your vitality beyond the Smart Energy System, check out my ultimate favorite combo: Dr. T’s Ultimate Energy Kit. In our studies, this four-part powerhouse more than doubled energy levels on average! The kit includes:

  1. Smart Energy Capsules
  2. S.H.I.N.E.® D-Ribose
  3. Energy Revitalization Multivitamin Drink
  4. HRG80™ Red Ginseng Chewables

Just three tablets and one delicious fruit-flavored drink each morning makes it a simple, and surprisingly affordable, routine. Right now, you can try one kit at about 40% off (a one- to two-month supply) and quickly rediscover what true, healthy energy feels like.

Jacob Teitelbaum, MD

is one of the world's leading integrative medical authorities on fibromyalgia and chronic fatigue. He is the lead author of eight research studies on their effective treatments, and has published numerous health & wellness books, including the bestseller on fibromyalgia From Fatigued to Fantastic! and The Fatigue and Fibromyalgia Solution. His newest book (June 10, 2024) is You Can Heal From Long COVID. Dr. Teitelbaum is one of the most frequently quoted fibromyalgia experts in the world and appears often as a guest on news and talk shows nationwide including Good Morning America, The Dr. Oz Show, Oprah & Friends, CNN, and Fox News Health.

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