The evils of... sitting

You workout on a regular basis, you watch what you eat, you don't smoke, you don't drink excessively.... You know what, you are so good to your body that you should kick back and relax a little bit. Why not have a seat? A-HA! You fell for it. (I knew you treated your body like garbage.) Sitting is horrible for you! Get your ass off that couch. You're killing yourself... literally!

A recent Australian study found that "those who reported sitting for at least 11 hours a day had a 40% higher risk of dying within the next three years than people who sat for less than four hours a day."

And no, exercise does not absolve you. Regardless of how active you are during your non-sitting hours, sitting too much is still horrible for your health.

The upside of all this is that the next time someone steals a seat from you on the subway, you'll know they're going to an early grave.

Step a "calorie-burning workout"

According to Shine (a magazine run by Yahoo!), step aerobics is one of "The Top 6 Calorie-Burning Workouts." Here is the list, in order of calories burnt per hour: Kickboxing - 800 Jumping Rope - 780 Biking - 700 Running - 650 Step - 600 Zumba - 500

I wouldn't take this list too seriously, since there are so many factors that go into determining the effectiveness of a workout. I'm just excited that step is enough on the radar to even be considered!

Oh yeah, and we beat Zumba.

Thanks, Nonie, for the link.

News flash: Women's hearts are not men's hearts.

It isn't the first time a study for one sex has been wrongly generalized to cover both. This time it appears that the way to calculate peak heart rate, originally based on a study entirely of men, has been found to be wrong when applied to women. For men, the peak heart rate is 220 - age. That means a 40-year-old man should have a peak heart rate of 180 beats per minute. Women, however, should instead use the formula 206 - 88% of age, so a woman of the same age should have a peak heart rate of 171 beats per minute.

This changes a few very important things. One's peak heart rate is used to calculate the recommended healthy range of heart rates (65% to 85% of peak) to stay within while working out. Furthermore, using the new formula specific to women, researchers are now able to better predict a woman's risk of heart-related death.

Thanks to Barbara for the link.