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Welcome to the HPRC Blog. We've got lots of information here, from quick tips to in-depth posts about detailed human performance optimization topics.

HPRC Fitness Arena: Mind Tactics

Caffeine and performance—limit your intake for best performance.

HPRC Fitness Arena: Mind Tactics, Total Force Fitness
Caffeine shouldn't be a replacement for sleep, and too much degrades your physical performance.

Caffeine in moderate doses can boost both physical and cognitive performance. It can help maintain alertness when you are doing long boring activities such as highway driving. It is especially effective for enhancing alertness and mental performance when individuals are sleep deprived. However, if you can, it is better to get the sleep your body needs. The suggested level of intake for enhancing cognitive performance is relatively low—one or two cups of coffee or one or two energy drinks (about 80-200 mg of caffeine). Larger doses can cause side effects (e.g. nervousness, irritability, shakiness, and trouble sleeping). It is very important not to consume large amounts of caffeine before trying to sleep. Blood levels of caffeine peak at about 60 minutes and are maintained for approximately two to three hours. Thus, although each person is different, another dose after four hours may confer additional benefits for activities of long duration or when alertness must be maintained.

The bottom line is, more caffeine will not improve performance—and may actually degrade it due to various negative side effects at higher doses.

Operation Supplement Safety (OPSS) has now been launched to answer many of your questions about Dietary Supplements. Visit the OPSS section of HPRC’s website now to learn more!

Don’t just listen – show you are listening.

Some tips for "active" and "constructive" listening will improve your communication skills.

Being able to communicate effectively with those around us is a great way not only to enhance our relationships but also to ward off unnecessary stress. When having a conversation with a partner, friend, or coworker, most of us forget to communicate that we’re listening and that we understand what the other person is saying, which, can lead to arguments and/or misunderstandings. Show the other person that you’re genuinely interested in what they have to say— asking questions and showing supportive reactions will help the other person feel understood. The Kansas National Guard has a video that demonstrates four ways of responding, including one that is both active and constructive (the best way!).

Breathe out stress; breathe in relaxation or energy

HPRC Fitness Arena: Mind Tactics, Total Force Fitness
Check out HPRC’s instructional videos on breathing tactics you can use to relax or energize you mind and body!

HPRC shows you how to perform three basic breathing exercises in the HPRC Breathing Exercises for Optimized Performance video. Three basic techniques are covered:

  1. Deep Breathing. Use this method whenever you need to release tension and relax. This is a very effective strategy to de-stress quickly.
  2. Alternate Nostril Breathing can help stimulate both sides of your brain, which encourages optimal cognitive performance. So if you are feeling mentally fatigued, try this technique.
  3. Breath of Fire. Commonly used in some yoga practices, fast-paced breathing encourages increased brain activity and can confer feelings of energy in mind and body. Also known as “bellows breath, this is a powerful method to be used carefully according to instructions.

Using any of these strategies in the right situation can provide you with the edge you need to reach optimal performance. Instructions for these techniques are also available in an annotated transcript of the video.

How are you at handling criticism?

Maybe you can dish it out, but can you take it?

You’ve heard the expression about being able to dish it out, but not being able to take it. Is there some truth to that? Being on the receiving end of criticism can be difficult, especially in a close relationship, and can provoke anger. If you think that avoiding, denying, making excuses, or fighting back are the best ways to handle criticism, take note of how many times those tactics have made it worse instead. The next time you feel criticized, try this: Listen to what is being said, ask for details, agree with your critic’s right to his or her opinion, and use the criticism as a learning opportunity. If you need time to think about what they are saying or to calm down, saying “Let me think about it” might be a good way to get some space.

Use self-talk to boost your performance

HPRC Fitness Arena: Mind Tactics, Total Force Fitness
Learn new skills, reinforce old skills, and stay motivated with self-talk strategies.


Talking to yourself (called “self-talk”) is a commonly used sports practice that can boost performance by training you to pay attention to the details of an activity or encourage yourself to keep going.

There are two types of self-talk that can help boost performance: instructional and motivational. Visit HPRC’s Performance Strategies on optimizing self-talk to learn more about these types and how they can benefit your performance.

If you’ve ever choked under pressure, read on.

Emerging research suggests that activating the right side of your brain may decrease likelihood of choking under pressure.

When your body simply refuses to perform a well-learned skill, it’s called “choking.” For Warfighters, the results could be disastrous. Recent research focused on the theory that it involves a disconnection—or loss of focus—between the muscles and the part of the brain responsible for motor skills (for most people, the right side of the brain).

The study tested a small group of athletes to see if better physical performance would result from stimulating the right brain. They found that those who did so—by squeezing a ball with the left hand to stimulate the right brain before a high-pressure situation—performed better than those who squeezed a ball with the right hand or not at all and almost as well as in a low-pressure situation. Although more work is needed to verify the concept, it is something you can try on your own.

Performance Quote: No garbage in

“Garbage in, garbage out.” - George Fuechsel, IBM programmer and instructor

“Garbage in, garbage out.” - George Fuechsel, IBM Programmer and Instructor

What you put in your mind and body has an impact on your performance. Surround yourself with positive people who can encourage you to build the motivation you need to maintain high performance during hard times. Replace negative thoughts and conversations with “I can…” statements. Nutrition also has an impact on your performance. Fueling yourself with high-performance foods can help you perform at your best consistently. Like a car, you cannot run on empty nor fuel yourself with empty calories. The Warfighter Nutrition Guide is an excellent resource for information about performance nutrition. For even more information on fueling performance, explore HPRC’s Nutrition domain.

Chaplain group tackles Warfighter performance issues

HPRC Fitness Arena: Mind Tactics, Total Force Fitness
Military chaplains have a working group that discusses emerging spiritual and behavioral issues Warfighters deal with on the front lines and post-deployment.

A working group of military chaplains makes time each month to discuss new research, practical strategies, and frontline experiences around topics like PTSD, spirituality, moral injury, and sexual assault. The September 2012 meeting focused on PTSD. From participant LTC Dave Grossman came this advice: “We are all going to have bad days as we walk our warrior path. Do not destroy yourself because of the bad days and never judge yourself by your worst day.” The article from the Defense Centers of Excellence highlights some advice from this group for tackling tough issues from a spiritual perspective.

If you would like more information on the Chaplain Working Group, you can send an email to dcoechap@tma.osd.mil.

“Interactive Brain”—A roadmap to your brain

HPRC Fitness Arena: Mind Tactics, Total Force Fitness
“Interactive Brain” can help you understand how the different parts of your brain work and how injury can impact the way your brain functions.

Ever have a buddy ask, “What’s going on inside your head?” Now you can look at the inner workings of the mind—“Interactive Brain” helps you understand how specific parts of the brain can impact basic functions and performance. This tool provides facts about the functions of the right and left sides of the brain, as well as the anatomy of vision, including videos of how head injuries affect eye movement. By going through the sections and clicking the links on the diagrams, you’ll also gain insight into how certain brain injuries such as mild to moderate TBIs can impact performance. Be sure to watch the introductory and anatomy videos that accompany the interactive diagrams, especially if you want to understand traumatic brain injury better.

Performance Quote: Bend with the wind

"Animated growth, like trees, never proceeds in straight lines. Trees are not like the walls of a house, they adjust to the living conditions of wind, sun, soil, and rain." - Ruth Cohn, noted psychotherapist

"Animated growth, like trees, never proceeds in straight lines. Trees are not like the walls of a house, they adjust to the living conditions of wind, sun, soil, and rain." - Ruth Cohn, noted psychotherapist

Whether it is environmental challenges (heat, cold, altitude) or psychological pressure, adjusting your performance strategies to your surroundings is the only way to ensure success. There will be situations that may seem impossible to overcome, but that is when you must dig deep and use whatever resources you have available. Enhance your performance by challenging yourself at every opportunity. Visit HPRC’s Environment and Mind Tactics sections to learn strategies on how to best adapt to different situations.

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