There is plenty of summer remaining … so make time to get to the water! Research shows that spending time outdoors has many positive effects on your health. Moreover, new research has found that being near a body of water makes us calmer and healthier. You know that special feeling you get when you drive to the lake or the beach and jump out of the car and smell the fresh air and hear the sound of splashing in the lake or the waves of the ocean? Well, it is not just because you’re on vacation…the water makes your muscles relax and breath deeper. Your brainwaves slow down to simulate the gentle roll of the water…lake or ocean! These “blue environments,” not to be confused with “blue zones” are the subject of extensive research at the University of Exeter Medical School in the UK.

Time spent near water promotes physical activity, general fitness and well-being. In addition, noted for reducing the incidence of diabetes and other diseases associated with obesity. Additionally, time near the water slows down our heart rate, reduces stress hormones and improves mental health. In fact, the study also found that subconsciously, people consistently preferred pictures of natural environments (rivers, lakes, oceans) even when compared to attractive urban landscapes. In fact, urban landscapes with water (rivers, fountains etc) were far more popular than those without. Also, health disparities between coastal and inland communities are more noticeable for low-income individuals who do not have the means to venture to the coast. This may be one of the reasons that four out of the five “Blue Zones” discovered by Dan Buettner are islands.

WHY BEING IN, ON, OR AROUND THE WATER IS HEALTHY

• WATER STIMULATES ALL 5 SENSES -Water provides a totally immersive experience.  We feel the coolness trickling on our skin, we taste the salt, smell the seaweed, hear the waves and splash of the water, and see the sun glistening on the water.
• WATER STIMULATES OUR NERVOUS SYSTEM -Water impacts our physiology in that it triggers our parasympathetic nervous system to lower heart rate and blood pressure which promotes relaxation. Even the act of drinking a glass of water can promote relaxation and wellness.
• WATER IS BLUE…BLUE IS THERAPEUTIC -If the rolling blue waves in the lake and ocean aren’t enough, the blue light waves will work to promote further relaxation. Additionally, the beautiful backdrop of a blue sky is the icing on the cake to make you chill out! Similar to “white noise” used by millions of parents to promote sleep for infants and toddlers, “pink noise” (the noise associated with natural sounds) is more smooth, soothing, ongoing and natural as it reduces brain wave activity…have you ever experienced a “beach nap?”
• WATER STIMULATES OUR INNATE BIOPHILIA - The biologist and naturalist Edward Wilson coined the term “biophilia” to describe the theory that humans have an instinctive bond with nature. As a species, our origins have begun on open savannahs and endless shorelines. These natural environments instinctively return us to a simpler time and place.
• WATER IMMERSION BALANCES OUR HORMONES -Did you ever notice the inner harmony of swimming underwater or total floating? When you are doing these activities, your body sends signals to balance stress hormones similar to the bodies response to meditation or relaxing.
• WATER ACTIVITIES STIMULATE ENDORPHINS -Whether you are swimming, surfing, kayaking, paddle boarding, fishing, clamming, walking the shoreline, digging a water hole or making a sand castle, these activities will stimulate endorphins. These natural chemicals associate with increased levels of with happiness, pain management and overall well-being.

In addition to the benefits of being by a body of water, just being outdoors promotes better health and wellness:

• Nature’s Vitamin D – Current research suggests that Vitamin D (The Sunshine Vitamin), may offer significant disease prevention and healing powers for osteoporosis, some forms of cancer and heart disease. Of all the methods of getting an adequate amount of Vitamin D, none is more fun than spending time outdoors in the sunlight.
• Increase Activity Level – While exercising indoors in a gym is valuable, research shows that time spent indoors is associated with being sedentary and being sedentary is associated with obesity, especially in children
• Improved Mental Health – Documentation reveals that light affects mood. So, unless you live in a glass house or a light box, getting outdoors is important to your mental health.
• Improved Concentration – Richard Louv, author of the book, “Last Child in the Woods,” coined the term, nature-deficit disorder.” This term, supported by research, found children with ADHD focus better when outdoors.
• Improved Health and Healing – Researchers at the University of Pittsburgh found that patients recovering from surgery recovered faster with less pain and shorter hospital stays when they were exposed to natural light.
• Improved Breathing – In general, breathing fresh air is good for you. Some exceptions might be those with severe allergy problems when the pollen count is high. Despite this, it may be better to take allergy medicine and enjoy the benefits of being outdoors than to be stuck inside.

Sources: NIH, Global News, Plume, L, University of Exeter Medical School in the UK.

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This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com

Paul J. Mackarey PT, DHSc, OCS is a Doctor in Health Sciences specializing in orthopaedic and sports physical therapy in Scranton and Clarks Summit. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at Geisinger Commonwealth School of Medicine. For all of Dr. Mackarey's articles, visit our exercise forum!

REMEMBER TO HYDRATE

The 25^th Steamtown Marathon is one month away! While the serious heat waves of summer may be behind us, any prolonged endurance activity in minimal to moderate heat can be dangerous if not prepared. Adequate hydration is critically important, not only to those training for a marathon but also for other outdoor endurance activities such as cycling, hiking, long distance power walking, etc

Next to oxygen, water is the nutrient most needed for life. A person can live without food for a month, but most can survive only three to four days without water. Even though proper hydration is essential for health, water gets overlooked as one of the six basic nutrients. Dehydration occurs when the amount of water taken into the body is less than the amount that is being lost. Dehydration can happen very rapidly (i.e. in less than eight hours); the consequences can be life threatening and the symptoms can be alarmingly swift.

In Our Body...

In the body, water is needed to regulate body temperature, carry nutrients, remove toxins and waste materials, and provide the medium in which all cellular chemical reactions take place. Fluid balance is vital for body functions. A significant decrease in the total amount of body fluids leads to dehydration. Fluids can be lost through the urine, skin, or lungs. Along with fluids, essential electrolytes, such as sodium and potassium, are also perilously depleted in a dehydrated individual.

This Risks

The risk of dehydration is not limited to endurance athletes and outdoor enthusiasts. Dehydration is the most common fluid and electrolyte disorder of frail elders, both in long term care facilities and in the community! Elders aged 85 to 99 years are six times more likely to be hospitalized for dehydration than those aged 65 to 69 years.

Is water enough?

Is water adequate to prevent dehydration? Will a sports drink improve my performance? While some answers to these questions apply generally to all, others vary according to the temperature, humidity, length of time and intensity of the activity and condition of the athlete. 

Proper hydration is essential for the comfort and safety of the recreational and serious athlete. Hydration is critical to maintain cardiovascular function, body temperature and muscle performance. As temperature, humidity, intensity, and duration of exercise increase, so too does the importance of proper hydration. Excessive sweating can lead to a loss of blood volume which requires the heart to work much harder to circulate you blood through your body.

Dehydration

Dehydration is a major cause of fatigue, loss of coordination, and muscle cramping leading to poor performance. Pre-hydration, (drinking before exercise) is the first step in preventing dehydration. Marathon runners, other long-distance runners, and cyclists often prehydrate1-2 days before a big event. Rehydration, (drinking during or after exercise) is the second step in preventing dehydration. While athletes may be more vulnerable to dehydration, all persons engaging in exercise would benefit from increased performance, delayed muscle fatigue and pain by maintaining adequate hydration. Proper pre-hydration would include drinking 12-16 ounces of water 1-2 hours before exercise.  Athletes with other health issues should consult their family physician before engaging in long distance endurance sports.

American College of Sports Medicine Hydration Recommendations:

• Eat foods high in carbohydrates and low in fat. Drink plenty of fluids between exercise sessions. The best fluids are plain water or fluids without sugar, caffeine or alcohol.
• Drink 17 oz or 2+ cups of fluid 2 hours before exercise
• Drink every 15 minutes during exercise.
• Keep drinks cooler than the air temperature. Drinks should be readily available.
• If you exercise more than 60 minutes, you may benefit from a sports drink containing a carbohydrate. The carbohydrate drink should not exceed 8% solution
• If you exercise more than 60 minutes, take 30-60 grams of carbohydrate per hour to delay fatigue and fuel muscle contractions.
• If you exercise more than 60 minutes, include (.5-.7 g per gallon) sodium in your drink of choice. This will also encourage additional drinking.
• Drink 24 ounces of water for every 2 pounds you lose after your workout. This is based on pre and post exercise weight.
• If you exercise more than 90 minutes, sports drinks may be helpful. 60 to 100 calories per 8 ounces of drink will help supply the needed calories for performance.
• Avoid caffeine. While the energy is good, it acts as a diuretic to rid the body of fluid. This is counterproductive for the high-level athlete.

NEXT MONDAY – Read Dr. Paul J. Mackarey “Health & Exercise Forum!”

This article is not intended as a substitute for medical treatment. If you have questions related to your medical condition, please contact your family physician. For further inquires related to this topic email: drpmackarey@msn.com

Paul J. Mackarey PT, DHSc, OCS is a Doctor  in Health Sciences specializing in orthopaedic and sports physical therapy. Dr. Mackarey is in private practice and is an associate professor of clinical medicine at GCSOM.