Once you build up to it (starting slowly but progressing as you get more fit), I think many sources agree that for most adults around 30 minutes of brisk walking 5-6 times a week is a good number to shoot for.
"For most healthy adults, the Department of Health and Human Services recommends at least two hours and 30 minutes a week of moderate aerobic activity or one hour and 15 minutes a week of vigorous aerobic activity — preferably spread throughout the week....As a general goal, aim for at least 30 minutes of physical activity a day. If you can't set aside that much time, try two 15-minute sessions or three 10-minute sessions throughout the day."
"Adults need at least: walking 2 hours and 30 minutes (150 minutes) of moderate-intensity aerobic activity (i.e., brisk walking) every week.."
"If any thing is sacred the human body is sacred...Have you seen the fool that corrupted his own live body? or the fool that corrupted her own live body? " -- Whitman
“Trust thyself: every heart vibrates to that iron string.” -- Emerson
"It's not what you look at that matters, it's what you see." -- Thoreau
| current weight: 182.6