Smart contact lenses use tear biomarkers for real-time disease detection and drug delivery, offering a non-invasive future ...

As the adage goes, 'the best camera is the one you have with you', but for photographers, it sure helps when it's a good one.

Send your senior questions to: Savvy Senior, P.O. Box 5443, Norman, OK 73070, or visit SavvySenior.org. Jim Miller is a ...