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.
Spinal cord injury: initially 75mg twice daily, may increase to 150mg twice daily within 1 week, then max 600mg/day after 2 weeks as tolerated. PHN: initially 75mg twice daily or 50mg 3 times daily; max 300mg/day after 1 week then 600mg/day after 2 weeks as tolerated (see literature). For all: renal impairment (CrCl <60mL/min): reduce dose (see literature); hemodialysis: give supplemental dose after session.