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With the use of technology on a steady rise, kids are getting less exercise than ever. Also on the rise? The number of kids diagnosed with ADD/ADHD. The Study Researchers recently took a closer look at a possible link between these two occurrences. In a …
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According to Princeton University’s Woodrow Wilson School of Public and International Affairs, women who lived in or near lower Manhattan around the time of 9/11 are experiencing increased birth defects. Researchers found that these mothers were more likely to give birth to babies with low birth weights, and the infants – particularly baby boys – were more likely to be admitted to neonatal intensive care units immediately after they were born.
On 9/11, the collapse of the towers produced an area of negative air pressure, which pushed dust and smoke into the neighborhoods surrounding the disaster site. In the past, research has shown that environmental exposure to dust clouds caused major health issues for adults living in the area. Symptoms were magnified in many emergency workers, with many suffering from lung issues, breathing problems and cancer.
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In this Princeton University study, researchers collected data on all births that were in utero on September 11, 2001 in New York City and compared the health of those babies to the health of their siblings. It was discovered that mothers in their first trimester on 9/11 were more than twice as likely to deliver a premature baby. Out of the infants born to these mothers, low birth weight was also more prevalent, especially in boys.
“Previous research into the health impacts of in utero exposure to the 9/11 dust cloud on birth outcomes has shown little evidence of consistent effects. This is a puzzle given that 9/11 was one of the worst environmental catastrophes to have ever befallen New York City,” said Janet Currie, Henry Putnam Professor of Economics and Public Affairs, director of the Princeton economics department, and director of the Wilson School’s Center for Health and Wellbeing. “Our work suggests a simple resolution of this puzzle, which is that the women who lived in neighborhoods exposed to the 9/11 dust cloud had very different experiences than women in other parts of New York City.”
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Athletes and fitness buffs wear Delayed Onset Muscle Soreness with pride. It’s that ‘burn’ that you feel following a good ab session, or even that little tension in your legs after doing squats. We’ve all experienced it and know it to be a great feeling, but not having the burn doesn’t mean that your workout wasn’t a good one!
Delayed onset muscle soreness (DOMS) usually shows up as early as 6 hours post-workout and can last up to 48 hours after. During this time, muscles are repairing themselves and growing. DOMS is most pronounced when you introduce a new training stimulus (a new activity, increased intensity or volume) or if you are new to physical activity in general. Muscle discomfort is the most common characteristic of DOMS, but there are other symptoms. According to the American College of Sports Medicine, these may include reduced range of motion and joint stiffness, local swelling and tenderness, and diminished muscle strength. These symptoms appear gradually following exercise.
It’s not a good workout unless you get DOMS.
We often wear our DOMS as a badge of honor and believe that if we’re not sore, we’re not doing enough during out workouts. But that’s just not true. If, after three days, you try to do the same exercise and you cannot because you go immediately to muscle failure, you’ve done too much.
The more fit you are, the less susceptible you are to DOMS.
It’s true that you will start to feel less sore as your body adapts to your workouts and learns to distribute the workload across your muscle fibers more effectively. That’s why you should regularly change up your exercise routine.
Pre- and post-workout stretching is a good way to prevent DOMS.
Unfortunately, no. A review of studies for the Cochrane Database of Systematic Reviews on the effects of stretching before or after exercise on the development of delayed-onset muscle soreness found that pre- and post-workout stretching did not reduce the effects of DOMS in healthy adults.
In essence, your muscle need time to recover and heal from your workouts so it’s best to allow enough time in between or switch your workouts up to prevent overuse injuries.
Source: http://www.cnn.com/2014/08/04/health/muscle-soreness-myths/index.html?hpt=he_c2