President Abelardo de la Espriella confirmed on an unspecified date that the Colombian national government will honor its financial commitments for the Metro lines 1, 2, 3, and 4. ^[1] President Abelardo de la Espriella conducted a tour of the construction sites for the first line of the Metro system on an unspecified date. ^[2] The confirmed financial support specifically applies to Metro lines 1, 2, 3, and 4. ^[3] Giuseppe Aragona stated that horizontal marks on nails known as Beau's lines are common and can arise after a period of severe illness or physiological stress when nail growth temporarily slows or stops. ^[4] Therapist Giuseppe Aragona explained to Metro that horizontal lines on nails can be caused by low protein levels in the blood, often occurring on the background of chronic diseases. ^[5] Giuseppe Aragona explained that vertical protrusions or indentations on nails are usually benign signs of aging that generally do not cause concern unless accompanied by other changes. ^[6] Podiatrist Alejandro Martinez stated that many people make three common mistakes when trimming toenails that subsequently lead to health problems. ^[7]