If you're aged 60 to 64, the average number of reps is 12 to 17 for women and 14 to 19 for men. If you're aged between 70 and 79, the average number of reps is ten to 15 women and 11 to 17 for men.

Ozzy Osbourne, the iconic front man of Black Sabbath, has died at age 76. His passing comes weeks after his final live ...