It's good to keep muscle as one ages

These two relatively recent stories got my attention

81-Year-Old Jumps In Pond, Pulls Woman From Submerged Car
An 81-year-old security guard in Volusia County, Fla., is being credited with saving a woman's life by jumping into a retention pond and pulling her out of a sinking sedan, according to a Local 6 News report. Frank Cappel, who is a security guard at the Hawaiian Tropic tanning labs in Ormond Beach, Fla., said he noticed a woman drive her vehicle into the water and he ran to help. Cappel wrestled the 200-pound woman out of the vehicle.

U.S. tourist kills mugger with bare hands
SAN JOSE, Costa Rica - An American tourist who watched as a U.S. military veteran in his 70s used his bare hands to kill an armed assailant in Costa Rica said she thought the attempted robbery was a joke — until the masked attacker held a gun to her head.

MAN, 100 FIGHTS OFF MUGGERS
28 February 2007
A 100-YEAR-OLD man fought off three teenage muggers after being surrounded at a bus stop.
Buster Martin, who still works five days a week as a car washer and mechanic, was followed by the gang when he left a pub..."I pushed one and kung-fu kicked the other one between the legs. They ran off scared after I did that and I still had all my money."