Add Yahoo as a preferred source to see more of our stories on Google. Getty Images; Alyssa Powell/BI Needle-free devices like TAP and Tasso offer painless blood collection, a benefit for the squeamish ...

A stick and poke tattoo is applied with a single needle that is dipped in ink. It is supposedly less painful than a regular tattoo, but could fade more quickly. You should never try doing an at-home ...

Needle-free devices like TAP and Tasso offer painless blood collection, a benefit for the squeamish. These tests face challenges with sample size and accuracy compared to traditional methods. This ...