Lack of moisture can lead to painful cracking and bleeding, which I typically prevent with a lip mask — they’re designed to retain moisture by creating a barrier between your lips and harsh ...

†University of California, Los Angeles. ‡University of Wisconsin. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all ...

The practice raises familiar questions about data privacy. Video by Mark Thiessen and Rebecca Hale, National Geographic/Face-mask recognition technology courtesy Tryolabs Video by Mark Thiessen ...