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.
Since we first posted our list of DMAA-containing dietary supplement products in December 2011, and especially since FDA’s announcement in April 2013, the number of products being manufactured with this ingredient has continued to decline. Our search does still occasionally turn up products with DMAA that were not on our previous lists: just six new products have been added since our last update in April 2013. Despite these additions, this update shows that about 80 dietary supplement products are apparently still being manufactured with DMAA, but note that many are by non-U.S. sources. Over the lifetime of this list 125 products have been discontinued or reformulated to exclude DMAA, including some of the most well-known ones. To the best of our knowledge and searching, 68 of these no longer appear for sale, even from distributor stock. You'll find our updated list of products containing DMAA here.
Although a limited amount of new-generation body armor specifically designed for women is already in theater, field tests will take place in July and August on 600 sets of this armor for female soldiers. These tests are part of the Army’s Rapid Fielding Initiative in which they roll out cutting-edge equipment for soldiers. This important development is just one change that is needed if women are to enter additional military occupational specialties, including front-line roles in ground combat. (The ban on women in combat was lifted in January of 2013.)
A noted feature of the new body armor is the decrease in weight from 31 to 25 pounds, which can reduce pressure on muscles and bones, possibly reducing musculoskeletal injuries. In addition, because there’s less friction and chaffing, the body armor is more comfortable. Even more important, though, the new armor addresses complaints from women that poor-fitting body armor restricts movement needed to carry out operations such as raising and firing a rifle.
You may have heard how deep breathing can help you relax and focus, but have you tried it yet? It’s a great strategy for helping your mind and body relax, but maybe you don’t know how to do it. You can learn how—and keep reminders handy—with this downloadable card that HPRC created recently for the Strong B.A.N.D.S. campaign. Try it out.
We all know the importance of communicating with our kids, but sometimes it’s hard to know what to say—particularly around issues such as sex, tobacco, alcohol, and drugs. Healthfinder.gov (from the U.S. Department of Health and Human Services) has tips for how parents can talk to their kids about:
- Healthy relationships
- Tobacco, alcohol, and drugs
Having open communication lines with kids and teens is important for healthy development. For more information on maintaining or strengthening your family check out HPRC’s Family & Relationships domain.
Deployments, injuries, transitions—just a few of the many things that can interfere with your normal exercise routine. Too long a break and your cardiovascular—or aerobic—fitness may suffer. For optimal performance, however, getting your heart and lungs back in action is critical. If you’ve been away from your routine for a while, start slowly and gradually increase intensity and duration. Be patient and stick with a routine, even on days you don’t feel like it. Mix up your routine when you’re able with different types of aerobic exercise such as biking, running, swimming, and rowing. For help planning your comeback, check out HPRC’s Performance Strategies for Rebuilding Cardiovascular Fitness. If you’d like to learn more about aerobic conditioning specifically for the PRT/PFT, read part 1 of our training series.
Neck pain in military pilots, particularly helicopter and fighter jet pilots, is a major concern. Conditions inherent in flying helicopters and jets put these pilots (and crew) at a greater risk for developing neck pain due to misaligned postures, the use of additional equipment on their helmets, and exposure to high G-forces. Effectiveness and readiness are compromised if a pilot is can’t fly because of pain. Pilots sometimes forego medical treatment for fear of being grounded or losing their flight status and, as a result, pain is left untreated.
Exercise programs specifically for strengthening the neck area can be helpful in preventing pain. “G-warmup” maneuvers can also be beneficial to prepare a fighter pilot for high G-forces. Military researchers are looking at improving and updating the ergonomics of aircraft seats and cockpits, as well as helmet fit. In the meantime, see your doctor if your neck pain doesn’t improve with rest and basic at-home treatments. And for more information, read HPRC’s InfoReveal.
Some recent evidence suggests that probiotic foods can contribute toward a healthy population of microorganisms in your digestive tract (gut). But what exactly are probiotic foods?
According to the World Health Organization (WHO), probiotic foods contain “live microorganisms which, when consumed in adequate amounts as part of food, confer a health benefit on the host.” In other words, they are foods that contain microorganisms (primarily bacteria and yeast) that may play a role in keeping the human gut healthy.
An astonishing number and variety of microorganisms—some good and some bad—occupy every nook, cranny, and passageway of our bodies. Most inhabit our digestive tract and play key roles in digesting food and digestive health. Maintaining the proper balance of good and bad organisms is essential. In fact, having more “bad” than “good” microorganisms is also associated with increased risk for short-lasting diseases such as colds and gastroenteritis and long-lasting diseases such as asthma and certain types of cancer.
More than 5,000 different strains of bacteria may reside in the average person’s digestive tract, which makes it hard to determine which ones might be good and which ones might be bad. But generally speaking, two strains seem to offer the greatest benefit to humans—Lactobacillus and Bifidobacterium. Both can be found in many widely available probiotic foods.
Fortunately, it’s easy to find probiotic foods these days. Take a walk down the dairy aisle of your local grocery store and you’ll likely find yourself inundated with products promising a variety of beneficial health effects, many of which are attributed to the products’ probiotic content. Choices include traditional fermented foods such as yogurt, kefir, and buttermilk as well as foods far from the dairy aisle such as sauerkraut, pickles, and miso (a soybean product).
Keep in mind that if you eat a greasy cheeseburger, fries, and a sugary soda followed by a yogurt “chaser,” it’s unlikely you’ll see much benefit from the probiotic organisms in the yogurt. The greatest benefits from eating probiotic foods occur when they are part of a diet that includes whole grains, plenty of fruits and vegetables, and low-fat sources of dairy and protein. For more detailed information, read “Oral Probiotics: An Introduction” from the National Center for Complementary and Alternative Medicine.
Ever wonder how many military families live on installations, how many have children, what schools they attend, and the children of fallen service members? Military OneSource has created an "infographic" to give context on the demographics for military families. Check it out.
For information and resources geared specifically for military families, check out HPRC’s Family & Relationships domain.
Warfighters involved in Operation Desert Storm to current missions in Iraq and Afghanistan may be experiencing what the Institute of Medicine is calling “Chronic Multisymptom Illness.” Research suggests that it is connected to toxins and contaminated environments in Middle East combat zones. Those who appear to be suffering from it have apparently unexplainable symptoms lasting at least six months in two or more of the following categories: fatigue, mood and cognition issues, musculoskeletal problems, gastrointestinal problems, respiratory difficulties, and neurologic issues. Dust storms and smoke from burn pits may be the vehicles for transporting toxic metals, bacteria, viruses, and perhaps the nerve gas sarin. Experts suggest that high temperatures and low humidity in the Middle East cause people to breathe more through their mouths than through their nose, carrying the pollutants deeper into the lungs, especially during rigorous physical activity. New legislation has recently set up burn pit registries to track the medical histories of those who may have been exposed to smoke from the practice of burning waste (human, plastic bottles, etc.) using jet fuel. With the rise of unexplained medical conditions among younger veterans of recent conflicts, researchers are looking for more conclusive evidence as to what exactly is causing this chronic illness. In the meantime, the IOM has just published a report with extensive information and recommendations for treatment.
Dendrobium is being used as a dietary supplement ingredient in some pre-workout products marketed to enhance physical or athletic performance. What is it? And is it effective? Read this OPSS FAQ about dendrobium to find out. Be sure to check back often, as we add answers to other questions about ingredients in performance and weight-loss supplements and how to choose supplements safely.
If you have more questions about a particular dietary supplement ingredient or product, please use our “Ask the Expert” button located on the OPSS home page.