Hello and welcome to this week’s edition of HealthBeat, Chiropractic OnLine Today’s Health, News and Informational Podcast, and Proud to be the #1 Search Result for Chiropractic Podcasts in the iTunes Podcast Directory.
In this week’s news: We’ll Be Looking At –
- Timing of Eating Meals
- Health, Exercise and Pedometers
- And Finally, a Story about Leisure Time Physical Activity and Life Expectancy
For HealthBeat, This is Dr. Todd Eglow!
Welcome to HealthBeat Podcast #384, recorded November 16, 2012.
HealthBeat is Chiropractic OnLine Today’s radio program, providing current news and commentary about Chiropractic and Health.
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And Now for some news ….
Timing of Eating Meals
Fat cells store excess energy and signal these levels to the brain.
In a new study in Nature Medicine, researchers show that deletion of the clock gene Arntl, also known as Bmal1, in fat cells, causes mice to become obese, with a shift in the timing of when this nocturnal species normally eats. These findings shed light on the complex causes of obesity.
The Penn studies are surprising in two respects. “The first is that a relatively modest shift in food consumption into what is normally the rest period for mice can favor energy storage.”
“The mice in the study became obese without consuming more calories.”
Indeed, the Penn researchers could also cause obesity in normal mice by replicating the altered pattern of food consumption observed in mice with a broken clock in their fat cells.
This behavioral change in the mice is somewhat akin to night-eating syndrome in humans, also associated with obesity and originally described by Penn’s Albert Stunkard in 1955.
The second surprising observation relates to the molecular clock itself. Traditionally, clocks in peripheral tissues are thought to follow the lead of the “master clock” in the SCN of the brain, a bit like members of an orchestra following a conductor.
In this study we see that the orchestrated behavior of the percussionist can, itself, influence the conductor.”
Surf to our Show Notes for links – http://www.sciencedaily.com/releases/2012/11/121111152934.htm
Health and Pedometers
Without detailed evidence of their effectiveness, pedometers have recently become popular as a tool for motivating physical activity.
A recent study published in JAMA has the Objective to evaluate the association of pedometer use with physical activity and health outcomes among outpatient adults.
Study Selection Studies were eligible for inclusion if they reported an assessment of pedometer use among adult outpatients, reported a change in steps per day, and included more than 5 participants.
The results of the study suggest that the use of a pedometer is associated with significant increases in physical activity and significant decreases in body mass index and blood pressure. Whether these changes are durable over the long term is undetermined.
Surf to our Show Notes for links –
Leisure Time Physical Activity and Life Expectancy
Leisure-time physical activity is associated with longer life expectancy, even at relatively low levels of activity and regardless of body weight, according to a study by a team of researchers led by the National Cancer Institute (NCI), part of the National Institutes of Health. The study, which found that people who engaged in leisure-time physical activity had life expectancy gains of as much as 4.5 years, appeared Nov. 6, 2012, in PLoS Medicine.
In order to determine the number of years of life gained from leisure-time physical activity in adulthood, which translates directly to an increase in life expectancy, researchers examined data on more than 650,000 adults.
After accounting for other factors that could affect life expectancy, the researchers found that life expectancy was 3.4 years longer for people who reported they got the recommend level of physical activity. People who reported leisure-time physical activity at twice the recommended level gained 4.2 years of life. In general, more physical activity corresponded to longer life expectancy.
Physical activity has been shown to help maintain a healthy body weight, maintain healthy bones, muscles and joints, promote psychological well-being, and reduce the risk of certain diseases, including some cancers.
As always, discuss all health and exercise recommendations with your Qualified Health Care Professional.
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Finally, I leave you with the following quote:
“Action is the foundational key to all success.”
– Pablo Picasso
For Chiropractic OnLine Today’s HealthBeat, This is Dr. Todd Eglow.