Among fitness tracker users, the number 10,000 floats around a lot -- as in, try to walk a total of 10,000 steps (about 5 miles) every day, including all your regular daily activities.

Sleep and personal care activities occupy about 10.18 hours daily for retirees age 75 and older, the highest among all age groups. Many retirees continue working part time, spending an average of ...

You need not embark on a complex daily fitness regime — simply go for ... that the loss of life years due to low levels of physical activity might rival the losses due to smoking and high ...