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.
Stimulants are common (and potentially problematic) ingredients in dietary supplements such as pre-workout and weight-loss products. But do you know how to tell if your dietary supplement product actually contains a stimulant? OPSS has some answers. Check out the OPSS FAQs about why stimulants are a problem and how to identify them on labels, both of which link to our list of “Stimulants found in dietary supplements.”
And while you’re there, visit our other OPSS FAQs, where you’ll find information about specific stimulant ingredients such as DMAA, DMBA, BMPEA, yohimbe, and synephrine. We also have several FAQs about caffeine, probably the most common stimulant.
It’s often great to connect with family and friends during the holidays, but it can occasionally feel like you’re drawn into old—sometimes negative—ways of communicating. If you only see your family now and then, they might view you as you were when you were younger instead of as you are now. Just being together in the same place can even ramp up old issues. Planning ahead for how to deal with situations can help you navigate them better and bring peace.
- Think about potential friction points with loved ones.
- Decide how you want to respond.
- Be patient with others.
- Stay positive and true to yourself.
Little things you do during your workday can reduce the amount of time you sit, decreasing your chance of developing certain sicknesses. Many jobs involve hours of sitting. Commuting, sitting down for dinner and TV after work, and then sleeping only add to the time most people sit or lie down in their daily lives. The more time you spend sitting, the higher your risk of chronic illnesses such as heart disease, diabetes, and even some cancers. We offer some ways to move more throughout your workday. Read more here.
Each year, the average adult catches 2–3 colds lasting 7–9 days each. That’s almost an entire month—YIKES! What you eat and drink each day can impact your body’s resistance to sickness. Want to keep the doctor away? Eat 9 servings of colorful fruits and vegetables daily.
Choosing nutritious foods when you’re sick shortens the number of days you feel badly and helps you feel better while you’re recovering. Here are some tips to help you get well soon:
- Grab a mug of chicken soup to clear your head and soothe your throat.
- Drink tea (black, green or white) to break up chest congestion and stay hydrated. Tea also contains a group of antioxidants, which could boost overall immunity.
- Take a spoonful of honey before bedtime to quiet a cough. You could also add honey and lemon juice to one cup of boiling water. (Not for kids under one year of age.)
These recommendations might have previously been considered folklore or old wives’ tales, but science now shows that Grandma knew best!
Holiday gatherings and alcohol often go hand in hand, but too much of the latter can make for a bad combination. If you choose to drink at your next social event, remember to pace yourself and avoid heavy drinking (more than 4 drinks for men and 3 drinks for women). What’s a drink?
- 12 ounces of regular beer
- 5 ounces of wine
- 1.5 ounces of spirits
Drinking more than that is considered at-risk drinking. Risks involved with drinking alcohol include injuries, motor vehicle accidents, sleep problems, and alcohol poisoning, which can be life threatening. Not only that, but alcohol is high in calories and can add to your waistline—an unwanted consequence, especially if your New Year’s resolution is to lose weight.
No matter how much you drink, always find a designated driver—someone who’s had no alcohol—to drive you home. Driving while intoxicated could cost you your career in the military, your life, or someone else’s life.
For more information and tips on how to celebrate safely this season, see The Truth About Holiday Spirits from the National Institute on Alcohol Abuse and Alcoholism.
Daily exposure to cold weather increases your nutritional needs. But if you only PT outside for an hour or so a day, workout in a gym, and spend the rest of your time indoors, your daily food and fluid needs don’t change much—even when it’s cold outside. If you’re training in the cold for long periods of time, such as during field deployment or cold weather operations, here are a few ways to help maintain peak performance:
- Calories. Moving through snow and icy terrain while wearing heavy gear causes your body to use more energy. Consume three to four standard MREs or three MCW/LRP rations per day to meet your energy needs. (At times you may have to force yourself to eat.)
- Carbohydrates. Carbs are your body’s first choice for energy. When your caloric needs increase, you’ll need to eat more carbs. Be sure to eat high-carb foods such as rice, noodles, bread, First Strike Bar, fruit or sports bars, crackers, granola, pretzels, and carb-fortified drink mixes from your MRE or MCW/LRP rations. Store snacks in your pockets so you can fuel on the go, between meals, and before bed.
- Hydration. Yes, you can still get dehydrated in the cold. Cold temperatures increase your fluid loss through increased urine output, breathing, and sweating (due to insulated clothing and intensity and duration of exercise). Fuel with fluids (excluding alcohol) even when you’re not thirsty. Make sure to monitor your hydration status by checking your urine color.
Remember, this isn’t the time to start a new diet (such as a low-carb diet) or lose weight, so fuel up to perform well.
Gratitude comes in different forms and has many benefits. There’s that thankful feeling when you receive a gift. Gratitude can also spring from awareness and appreciation of what’s really important. You can also express thanks to acknowledge that you value others, their actions, or how you benefit from others’ kindness.
When you express gratitude, you form tighter bonds with others and invest more in those relationships. Naturally, you take care of little things that help your relationship work. For example, expressing gratitude daily to your romantic partner for three weeks helps you care more about your loved one. When you say thanks, your partner is more likely to feel that there’s a fair split with household responsibilities.
If you’re feeling grateful, you might want to assist others. You could likely help someone with a personal problem, offer emotional support, and work cooperatively. You could also face what’s hard and feel more comfortable in voicing concerns to a friend or partner—partially because you’re in touch with how important that person is to you. Feeling gratitude increases your satisfaction with life and helps you remember what matters most—relationships, not material things.
The benefits of tapping into gratitude don’t end with better relationships. Writing down what you’re grateful for every day for three weeks can improve your mood, coping abilities, mental health, and physical well-being. Gratitude can also strengthen your belief that life is manageable, meaningful, and sensible. Thankfulness can help you feel less sad or anxious, as you experience more joy, enthusiasm, and love. It can even lower your blood pressure and risk of stroke, reduce stress hormones, and improve your immune system.
If you’re feeling stressed, don’t rely on liquid relaxation products to relieve your tension. While energy drinks are promoted to give you an extra boost, relaxation drinks* are marketed to do just the opposite and help you, well, relax. These products commonly contain the amino acid theanine, as well as several different plant-based ingredients. But the science doesn’t support the use of relaxation drinks to decrease stress or anxiety, and consumers should be cautious of two ingredients: kava and melatonin. Bottom line, if you’re feeling stressed, try to identify the cause, and then use stress management strategies backed by scientific evidence. Read more here.
Foam rolling can help increase your range of motion (that is, how much your muscles and joints can move) and reduce muscle soreness that results from working out too hard or too long. So how does it work? More research is needed to understand its full effects, but Golgi tendon organs—specialized muscle nerve endings—are sensitive to changes in muscle tension. When you roll over them, the muscles relax. Here are some tips for effective foam rolling:
- Don’t foam roll over newly injured areas.
- If you’re just starting out, you might want to choose a lower-density foam roller. Higher-density foam rollers will provide more pressure.
- Roll to find tight spots in your muscles and then hold your weight over those areas, or continuously roll over a muscle to loosen it.
- Gradually increase the amount of time you roll over each muscle. If you’re just starting, foam roll 1–2 minutes per muscle group.
- Focus on large muscle groups such as your quads and upper back.
Check out HPRC’s how-to videos on foam rolling calves, hamstrings, glutes, and more. Roll on!
You probably know how good it feels to tap your foot to the beat of a familiar song. But did you know that moving your body in sync with a beat could help improve thinking and learning abilities? It might possibly repair brain injuries too.
Recent hi-tech breakthroughs show that lining up precise, repeated movements (such as hand clapping) with a certain beat could boost brainpower. Similar to how biofeedback helps you use your mind to ease stress and manage pain, this synchronized metronome training (SMT) approach helps to master the timing of these movements.
SMT is linked to improved concentration, academic performance, behavior, and muscular coordination in children diagnosed with Attention-deficit/hyperactivity disorder (ADHD). It’s also a promising treatment for those diagnosed with brain-based movement disorders such as cerebral palsy, Huntington’s and Parkinson’s diseases, and stroke-related injuries. SMT offers mind-body benefits for active-duty soldiers coping with blast-related traumatic brain injuries (e.g., inattention and short-term memory loss). It’s even helped healthy golfers step up their game.
SMT helps improve fluid movements for those experiencing excess muscle tension. It also enables better concentration for those feeling distracted or anxious. People can learn to complete a task without trying too hard. Through SMT, you can train your brain by “letting” movements happen—key to its success.