2) Be gentle with them
“Your fingernails are delicate, and scrubbing them too roughly can, in fact, expose you to infection. Another no-no: Using metallic tools under the nail, too much digging can cause the nail plate to split up from your skin (called onycholysis). It’s a common problem for people over 50, according to Dr. Stern, who is also the developer of the Dr. Dana Nail Renewal System. This could also lead to an irregular white, arching nail tip, explains NYC dermatologist Dr. Janet Prystowsky,” according to Good Housekeeping.