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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.

Laughter: Great for mind, body, and relationships

Heard any good jokes lately? If so, just remembering them probably has you smiling and feeling better. Did you know there is scientific evidence to support those feelings?

Laughing can be more than just fun in the moment. It also can also have positive mental, physical, and social benefits. The research into the effects of positive mood, or happiness, includes how laughter and humor affect our well-being. The results show that positive emotions aren’t just superficial feelings. Brain imaging, for example, shows that reward areas in the brain “light up” during positive emotional experiences such as laughter. 

A positive mood also can impact your physical health, specifically your heart. It’s been established that long-term negative emotions can damage your physical health. Positive moods, on the other hand, can protect your cardiovascular system. One 10-year study found that those who express more positive emotions (either in words or in actions such as smiling or laughing) have a lower risk of coronary heart disease. Other studies have found that positive emotions, including optimism and a sense of humor, can enhance your immunity and might even help you live longer.

But these positive benefits aren’t just limited to your body. Humor and positive emotions can strengthen relationships, foster communication, and reduce feelings of isolation. However, the key to these social effects is to use humor appropriately. For example, laughing in the middle of a funeral ceremony may not be appropriate, but laughing at a funny movie is.

Share a joke or a smile with someone today.

Do mindful people have good hearts?

New research suggests that highly mindful people also engage in healthy habits that protect them from heart disease.

Being mindful means simply being extra aware, in a nonjudgmental way and in the present moment, of your physical and mental experiences, even during ordinary, everyday tasks. Mindfulness isn’t just a technique you can do or a skill you can learn. It can also refer to a way of being. In other words, some people work on becoming more mindful and others just are mindful.

Mind-body skills—including mindfulness—reduce stress and improve heart health. And mindfulness in particular (both the skills and the way of being) has become a hot topic. Much of mindfulness research has focused on medical problems, but scientists are just beginning to really understand its role in preventing heart disease.

One recent study looked at people who already tend to be mindful, so it’s hard to say that mindfulness causes the good things associated with it, but somehow they seem to be related. However, according to another study, when cardiac patients were trained to be more mindful, they made smarter decisions about nutrition and exercise.

People who already tend to be very mindful, also tend to:

  • Not smoke
  • Have less body fat
  • Have less glucose (sugar) in their blood
  • Exercise more frequently

There are a couple factors that impact how mindful you can be in the first place: 1) how in control you feel and 2) whether or not you feel depressed. When you feel in control of your life, you’re able to monitor your own behaviors and change what you’re doing. When you’re feeling down, you might run on “autopilot,” without tuning in to your body’s sensations or your thoughts.

Over time, research will tell us more about how mindfulness affects healthy behaviors and how healthy behaviors impacts mindfulness. In the meantime, there appear to be many benefits associated with training mindfulness if you don’t tend to be mindful already. 

A military teen’s take on caffeine

Teens may be consuming more caffeine than they (or you) know. Learn from one military teen’s perspective about sources of caffeine and how teens can avoid consuming too much.

Coffee, energy drinks, energy shots, soda—we’re surrounded by these products, and many are marketed specifically to teens. Their advertisements make caffeine seem a harmless and effective boost to help teens meet the demands of school and after-school activities. Three of four U.S. children and young adults now consume some form of caffeine every day.

Teens shouldn’t consume more than 100mg of caffeine (roughly the amount in an average small cup of coffee) per day. That’s enough caffeine to give you energy and help you stay alert. But too much caffeine can be a serious problem. Signs that you’ve had too much caffeine can be jitters, nervousness, increased heart rate, and an upset stomach. For more about the symptoms of too much caffeine, read FDA’s article.

Many drinks and foods that contain caffeine don’t clearly say so on the label. Energy drinks, for example, can contain lots of different forms of caffeine, such as guarana, green tea extract, and yerba mate. Although you might see these listed on the label, you still might not see the total amount of caffeine listed. Energy drinks don’t have to report how much caffeine is in them. So think twice about how many of them you drink, and learn more from HPRC’s article about energy drinks.

And for athletes: Don’t use energy drinks to replace sports drinks for extra energy. The same goes for other beverages with caffeine: sodas, coffee, and tea. Sports drinks are for hydrating and replacing electrolytes and other nutrients lost while exercising. Water is best in most cases!

Just because something contains caffeine doesn’t mean you have to completely eliminate it. Be aware of all the different sources of caffeine and try not to overdo it. And be sure to watch HPRC’s “Caffeine & Teens” video for more from a teenager’s perspective.

Based on a blog by HPRC intern Diana Smith. Diana is a military teen and high-school sophomore who is interested in science and enjoys drawing in her downtime. 

Calling all military family support groups

Check out HPRC’s new section with resources for Family Readiness Groups, Family Support Centers, Family Advocacy Programs, and others you can use to support military families.

Attention military family support groups! Want resources to help support the work you do for military families? Check out HPRC’s new section in the “Family and Relationships” domain called “Relationship Toolkit.” We listened to requests from family support groups and programs like yours and created a section that houses many of our family-oriented HPRC resources in one place. They’re grouped according to topics such as building and maintaining strong relationships, exercising and eating healthfully as a family, recharging, and managing emotions. So check out the new section. And if you don’t see what you’re looking for, let us know via our “Ask the Expert” button.

Prevent home fires!

HPRC Fitness Arena: Environment, Total Force Fitness
Preventing home fires is everyone’s fight. Learn how.

It’s important to take the proper safety precautions prevent home fires. The U.S. Fire Administration has some simple but effective tips to prevent home fires and keep you and your family safe. 


Training your ears may improve your balance

Filed under: Balance, Fitness
Your ears are responsible for more than hearing. Your inner ear also helps you with your balance. Learn more about training this balance system.

Just like athletes, Warfighters need great balance systems for optimal performance. Your inner ear plays a big role in your ability to stay balanced and upright by sending messages to your brain about the movement of your head and body (rotating, forward, back, up, down, speeding up, or slowing down). The collection of nerves and other parts of the inner ear that form this sensory system is known as the “vestibular system.” We know that this system is more highly developed in athletes, but some evidence suggests that training the vestibular system can improve balance in less-trained athletes and non-athletes as well.

The vestibular system can be trained, much the same way as a muscle, after injury to the ears or brain, so that patients can experience normal balance again and reduce dizziness symptoms. Medical professionals and therapists use three approaches, which they can teach individuals to do on their own:

  • Adaptation. Find the areas of your vestibular system that are “off” (vision, timing, balance, or dizziness) and practice eye-head coordination to regain that skill.
  • Substitution. Learn to use different parts of your vestibular system to get the information you need to correct your balance and dizziness.
  • Habituation. Challenge your system incrementally (for example, just to the point of feeling seasick) to improve your tolerance of an activity.

Since these treatments can restore normal function in the injured athlete or Warfighter, then it’s possible that this kind of therapy can also help healthy service members develop exceptional ear-balance systems and other crucial Warfighter skills. More research is still needed, but the outlook is promising.

Food and color additives: What are they?

HPRC Fitness Arena: Nutrition, Total Force Fitness
If you read product labels, you know there are numerous “mystery” ingredients in many foods. This FDA brochure takes some of the mystery away.

Food and color additives exist in many of the foods that we eat. They are used to improve safety and freshness, maintain the nutritional value of foods, and improve texture and appearance. The Food and Drug Administration (FDA) has put together a helpful brochure reviewing how additives are approved for foods, types of food ingredients, and a description of food and color additives.

Anxious or excited?

Learning to transform anxiety into excitement helps you when performance matters. Learn how here!

When performance matters, it’s common to feel amped up—your heart beats faster, for example. How you interpret these physical sensations can change how you feel emotionally, including your overall mindset, and ultimately make a difference in how you perform. Recent research into performance anxiety over tasks such as singing, public speaking, and math gives us some insights about performance anxiety in general.

It’s normal to interpret some physical signs as performance anxiety. When you feel amped up, it may be difficult—or even impossible—to simply “decide” to feel calmer, because it isn’t consistent with what is happening in your body. And trying to pretend you’re calm can actually make you feel more anxious. But because your body has some of the same reactions—increased heart rate, “butterflies,” etc.—when you’re excited, you can actually feel excitement and anxiety at the same time by simply saying “I’m excited!” or deciding to feel excited. This doesn’t make the anxiety go away, but adding a layer of excitement over it can be valuable to how you think and ultimately perform..

Excitement feels good and puts your mind on a different track. When you’re excited, it’s easier to become aware of opportunities instead of potential threats. And this “opportunity mindset” leads to better performance.

So when you feel anxious about performing on the PRT, with marksmanship, or for any other task, remember that it’s normal. Convince yourself to feel excited. Allow yourself to see the opportunities. And in turn, enjoy better performance.

Getting more out of your doctor visits

Learn some tips for remembering your doctor’s advice and getting the most out of your appointments.

Have you ever left a doctor’s appointment only to realize that you couldn’t remember half of what he or she told you? Or that you forgot to ask some important questions that had been on your mind? 

It happens to all of us. Even routine visits can be unnerving. One of the ways you can help avoid these two scenarios is to write things down. It sounds simple, but it can be a helpful habit. Before you or someone you loves goes to a medical appointment, take a moment to jot down any issues or questions that you want to discuss. Have that piece of paper handy to refer to when you see your healthcare provider. Better yet, get a small journal that can fit into your pocket/purse/bag and track all your health statistics and questions in one place over the year.

Remember to jot down your provider’s answers to your questions. And while you’re there, take a moment to repeat back the main points to make sure you understood them correctly. If you are unsure about something, continue asking questions until you understand the issue.

For appointments that are more complex, consider bringing along someone you trust to take notes for you.

Prepare to “fall back” gently

HPRC Fitness Arena: Environment, Total Force Fitness
Daylight Savings Time changes to Standard Time the first weekend in November! Be ready with a plan to stay fit despite darker mornings and evenings.

Getting an extra hour of sleep is a dream come true for many of us. For others, the end of Daylight Savings Time means an extra hour on the town or time to catch up on a to-do list. No matter how you choose to spend your extra hour, the amount of sunlight typically decreases over the following weeks, depending on where you are in the world. The change in daylight may influence your outdoors activities, so take this time to make a plan for how to remain active in the upcoming “dark days” of Standard Time.

Plan ahead for outdoor activities in the dark:

  • If you jog or hike outdoors in the morning or evening hours, wear reflective or light-colored clothing to be easily visible.
  • Plan your route ahead of time and let someone know when and where you will be exercising.
  • Have a cell phone handy in case of emergencies.
  • Be vigilant. A head-mounted flashlight can help you see holes and debris in your path to avoid sprains and injuries. Also beware of animals that might spook as you pass them in the dark.
  • If you must wear earphones, only use one ear bud.
  • Bring a buddy or pet!

Plan fun activities indoors:

  • Move your exercise routine indoors. Whether in the gym or at home, there are plenty of ways to stay active. Try High Intensity Tactical Training (HITT) for a vigorous workout. Or take this time to give yoga a try or deepen your practice.
  • Plan activities that get the entire family involved. Even if you don’t have a gaming console, you can try dancing, hula hoop, or a jump-rope contest. HPRC has more family fitness ideas you can try.
  • Finally, think about how much sleep you usually get. Do you get the recommended seven to eight hours every night? This extra hour might be the jumpstart you need to begin prioritizing sleep. For more information on sleep tips, check out HPRC’s Sleep Optimization section.
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