The Apple Watch and Microsoft Band use optical sensors to measure heart rate. The Jawbone Up3, which instead tracks your resting heart rate, uses bioimpedance sensors and several electrodes to measure your skin’s resistance to a small amount of electrical current.

Originally, all photography was monochrome, or black-and-white. Even after color film was readily available, black-and-white photography continued to dominate for decades, due to its lower cost and its "classic" photo graphic look.

The Apple Watch and Microsoft Band use optical sensors to measure heart rate. The Jawbone Up3, which instead tracks your resting heart rate, uses bioimpedance sensors and several electrodes to measure your skin’s resistance to a small amount of electrical current.

There’s a misguided notion that natural beauty products just don’t do the job as well as conventional creams and cleansers. While that may be the case for some, I’ve found that many natural products are even better than the drugstore brands. Case in point: Mullein and Sparrow.

The Apple Watch and Microsoft Band use optical sensors to measure heart rate. The Jawbone Up3, which instead tracks your resting heart rate, uses bioimpedance sensors and several electrodes to measure your skin’s resistance to a small amount of electrical current.

There’s a misguided notion that natural beauty products just don’t do the job as well as conventional creams and cleansers. While that may be the case for some, I’ve found that many natural products are even better than the drugstore brands. Case in point: Mullein and Sparrow.

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Chasing the blonde dragon is still a genuine plight, because the grass is always greener on the other side, i.e., the other end of the hair color spectrum. And while Sun-In may not be the answer — not even the fair-haired who are just out for some highlights are immune to the moisture zapping.

There’s a misguided notion that natural beauty products just don’t do the job as well as conventional creams and cleansers. While that may be the case for some, I’ve found that many natural products are even better than the drugstore brands. Case in point: Mullein and Sparrow.