Despite the global ubiquity of the smartphone, there are still those who would like one of their own, but due to physical limitations involving their hands and fingers they remain out of reach. But with a new invention -- the world's first touch-free smartphone -- that is now changing.

Some of the top health stories making news over the last 48 hours.

If your goal is to achieve a lofty station in life, it would be unwise to start as a Sprague-Dawley rat. Not only are they bred to test whether chemicals and foods might give people cancer, but they don't even do it well. In short, it's not great to be one of them, and here's why.

Researchers subjected rats to different exercises and assessed what effect if any they had on brain structure and function. And they learned that a good aerobic workout improves gray matter, a finding that could have healthy implications for humans.

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Despite enormous news coverage, there's still very little known about the Zika virus. What we do know is that recently there have been two important studies that strengthen the link between the virus and birth defects, and that there are now 30 countries where it's found.

Reality TV star, "Mob Wife" Angela Riaola died of extensive cancers caused by her long-term smoking addiction. Why can't our scientists find effective ways to prevent or treat this key public health crisis: cigarette smoking addiction?

Brain hacking is a relatively new term referring to cognitive enhancement coined by a generation of overachieving, aggressive millennials determined to stay ahead of the curve by playing chemist and guinea pig.

Your mother might have told you not to chew gum it's bad for your teeth, and it sticks your stomach together, etc. But in some cases, your doctor might actually prescribe a little gum chewing to help you recover from the effects of surgery.

While Apple wages a legal battle with the FBI, and the debate rages on over whether the privacy of every cell user could eventually be jeopardized if Apple complies and unlocks a terrorist's phone, interestingly there may be some private information on your phone that you might voluntarily want to make available, under certain circumstances.