Archive for the ‘Life & Lifestyle’ Category

Hi Everyone,

We are excited to let you know about a new feature of RightHealth’s DailyDose blog.  Starting today, every Monday will be “Ask the Doctor” day.  In every Monday’s DailyDose post, I will respond to one of the questions posed by our readers.  If you have a question about a personal health issue or want to learn more about health topic that you find interesting, please email it to dailydose@righthealth.com.  Don’t worry, your identity will be kept confidential.

Please understand that we can’t answer all of your questions each week!  But we’ll do our best to select the questions which have the broadest interest among you.

So let’s get started!  This week’s question is from Mark V…

The cardiologist who recently examined President Obama, an admitted occasional smoker, told the Commander in Chief that although he received a clean bill of health, he’s still at risk for heart disease because he is a smoker in a high-stress job. Does smoking less frequently or just occasionally reduce the health risks for smokers?

Smoking accounts for over 400 thousand deaths annually in the United States, mostly in the form of lung cancer, stroke, and coronary heart disease. In fact, smoking increases every kind of cancer risk with 80% of lung cancers linked to smoking. It doesn’t matter if you smoke only one cigarette a day or one pack a day. The act of smoking will increase your risk of these diseases. We also know there is a clear link between second hand smoke and cardiovascular disease. Approximately 23 to 70 thousand premature deaths occur each year in the U.S. because of second hand smoke.

Does smoking less reduce health risks? The answer is yes. If you smoke three packs a day as opposed to one pack a day, you do have more of a risk for heart disease.  But it’s not until you quit smoking do you see some amazing results. Here’s what we know:

• At 20 minutes after quitting your blood pressure decreases and the body temperature of your hands and feet increase, due to improved circulation.
• At 24 hours you begin to see a decrease in heart attack risk.
• At 48 hours your senses of smell and taste improve and nerve endings actually begin to regrow!
• After 1 year your risk of coronary heart disease drops by 50%.
• After 5-15 years your stroke risk drops by 50%.
• After 10 years your risk of lung cancer drops by 50%.
• After 15 years your risk of coronary heart disease and death rate returns to the same level as those who never smoked.

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A new study released this week of over 30 thousand US children found that, on average, kids snack three times a day. What’s more, over half of these children snack 4 times a day. Compared with data from the 1970s which show children consuming over 400 daily calories from snacks, kids today consume nearly 600 daily calories from snack food alone. “My underlying fear is that we’re moving away from being hungry and eating for satiation to just eating,” said Dr. Barry M. Popkin, co-author of the study and director of nutrition epidemiology at the University of North Carolina. Although caloric intake from snacks have increased over time, the average child’s total daily calories have only increased by 113 calories. This means that snack calories have replaced mealtime calories, which is not a good thing since sweet snacks (cookies and cakes) and salty snacks (chips and pretzels) are the top two most consumed categories of snack. [via New York Times]

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A study published in the March, 2010 edition of the Archives of Pediatrics & Adolescent Medicine suggests that children who spend more time engaged with electronic communication and entertainment mediums such as cellphones, televisions and computers, form lower quality relationships with their families and peers. Conversely, teens who spend more time reading and doing homework reported a higher level of attachment to parents. Overall, the more screen time teens get, the more difficulty they had in forming relationships or emotional bonds with others. The authors theorize that spending more time interacting with screen-based activities prevent teens from interacting with those around them. “However, it is also possible that adolescents with poor attachment relationships with immediate friends and family use screen-based activities to facilitate new attachment figures such as online friendships or parasocial relationships with television characters or personalities,” the authors write. Can modern technology really impact social development, psychological and physical well-being? Certainly. But, could there be positive benefits of screen time as well? [via PHYSORG]

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A new study in this month’s issue of the journal Obstetrics & Gynecology demonstrates that excessive weight gain during pregnancy, especially in the first trimester, can increase a woman’s risk of developing gestational diabetes mellitus (GDM). Although it’s known that too much weight gain can lead to GDM (which is one of the reasons why doctors carefully follow a pregnant woman’s weight), results from the current study shows that women who gained more weight during pregnancy than recommended by the US Institute of Medicine were 50% more likely to develop the disorder. GDM can lead to early delivery, increased risk of c-sections, type 2 diabetes in the mother post-partum, and even increases the likelihood that the child will develop diabetes and obesity later in life. [HealthDay via Yahoo! News]

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Green tea has been touted for various health benefits (such as fighting against heart disease and cancer) largely due to it’s high level of antioxidants called catechins. Now, Chinese scientists have found that the catechins appear to be able to penetrate into the tissues of the eyes, especially into the retina, which is the light-sensing tissue that lines the back of the eye. The study, published in the Journal of Agricultural and Food Chemistry, demonstrated that this antioxidant activity can last for up to 20 hours after drinking green tea extract. The authors theorize that the readily absorbed antioxidants help to protect the delicate tissues of the eye from glaucoma and other eye diseases. However, it must be noted that East Asians experience the highest rate of blindness from one common type of glaucoma, despite being among the largest consumers of green tea. Therefore, further studies will definitely be needed to confirm any protective ocular effects of green tea in humans. [Via WebMD]

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Researchers from the Karolinska Institute are embarking on a new paradigm in exercise physiology after publishing a paper in this month’s British Journal of Sports Medicine. The study authors argue that prolonged periods of sitting is an entity distinct from the commonly used terminology “sedentary behavior,” which means a general lack of exercise. Rather, they contend that the use of the term “muscular inactivity” more accurately describes a state of being in which people have prolonged periods when even light physical activity is not achieved. This is important because research shows that periods of prolonged sitting and lack of whole body muscular activity is strongly associated with the development of diabetes, obesity, heart disease and cancer, regardless of whether moderate or vigorous exercise was performed. This goes to show that maintaining an intermittent level of activity that involve total body muscle movement (climbing stairs, walking to run errands, taking a walking break during sedentary work) is just as important as incorporating moderate to vigorous exercise into your routine. [via Medical News Today]

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New research from the current issue of PM&R: The journal of injury, function and rehabilitation shows that running shoes may cause more stress on some joints compared to running barefoot. Researchers observed increased joint torques (a measure of the amount of twisting along a certain axis) at the ankles, knees and hips when subjects wore running shoes. This puts increased stress on these joints and may increase the risk of osteoarthritis. The study authors attribute this to the elevated heels and increased material under the arch, both of which are characteristic of today’s running shoes. This makes sense since a small change in foot mechanics due to improper footwear can lead to further alignment changes in your ankles, knees and hips. “Reducing joint torques with footwear completely to that of barefoot running, while providing meaningful footwear functions, especially compliance, should be the goal of new footwear designs,” says lead researcher Dr. D. Casey Kerrigan, MD. [via Science Centric]

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On November 13, 2009 the FDA issued notification to 30 manufacturers of caffeinated alcoholic beverages that it intends to look into the safety and legality of their products. “The increasing popularity of consumption of caffeinated alcoholic beverages by college students and reports of potential health and safety issues necessitates that we look seriously at the scientific evidence as soon as possible,” said Dr. Joshua Sharfstein, principal deputy commissioner of food and drugs. The problem is that caffeine has not been approved by the FDA to be added to alcoholic beverages. However, some substances which are Generally Recognized As Safe (GRAS), or have been subject to prior sanction, are legality able to be used as food additives. For a substance to be GRAS, there must be evidence of its safety at the levels used and a basis to conclude that this evidence is generally known and accepted by qualified experts. Thus, the FDA is giving these companies 30 days to produce data to support that the use of caffeine in their products is GRAS or have been previously sanctioned. Click here for a full list of companies and products affected. [via FDA]

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Telomeres have been a focus of anti-aging research for quite sometime. Unfortunately, no breakthroughs have yet revealed any glimmer of the fountain of youth. Telomeres are pieces of DNA that cap the ends of our chromosomes. Each time a cell divides (which is required for us to stay alive) telomeres get shorter and shorter until they reach a point where division is halted, thus putting bodily cells into a state where they can no longer renew themselves – thus is part of the aging process. However, new research focusing on Ashkenazi Jews has found that those who lived the longest had inherited a hyperactive version of an enzyme called telomerase that is able to rebuild telomeres. “In effect, centenarians tend to have a top-notch body mechanic at work 24/7 repairing the hardware that runs the body, versus a normal person whose body’s cellular control center is left to wear out with time.” Will this startling research lead to future advances in the pursuit of longevity? Only time will tell. [via Yahoo! News]

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The National Heart, Lung and Blood Institute (NHLBI) has published an update to their popular cookbook entitled “Keep The Beat.” It’s a collection of recipes that are limited in saturated fats, trans fats, cholesterol, and sodium, as well as being moderate in calories. The majority of the recipes were created in collaboration with Culinary Institute of America-trained chef and instructor David Kamen and a James Beard Foundation award-winning registered dietitian based on guidelines from NHLBI. For those with heart disease, or those who simply want to eat healthier, it’s often difficult to find nutritionally sound recipes that are delicious at the same time. Costing only a nominal $5 it may just be the healthiest pocket change you spent in a while. The book can be purchased at the NHLBI website. [via NIH News]

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