Shutter Speed s. Many of today's SLR camera s offer action-stopping shutter speed s of 1/2000 sec. or faster. None of the point-and-shoot models come close, although some do offer speed s fast enough to stop most action.
According to the National Institute of Health, research suggests that taking between 20 to 50 milligrams of DHEA supplements daily should be sufficient and safe for most adults over the age of 30. Individual needs will vary, but less is usually better, especially at first.
That answer varies from hub to hub, route to route. In my hub, there are several routes that average maybe 5 miles a day total, whereas the route I run averages 75-80 miles a day. Some rural routes may run a couple hundred miles in a day. The package counts/stop totals also vary.