When these sexy babes aren't skydiving, motorbiking, scuba diving, or helicopter flying, they're high-kicking and step-touching in the aerobics room. It makes perfect sense. What better way to hide your identity as a government agent than to masquerade as an aerobics instructor! The premise seems airtight to me, so I'm puzzled as to why this pilot for "Velvet" never took off.

Thanks, Mike, 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.