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.
1 DHEA supplements may interfere with other medications thus you should take it only under medical supervision. 2  If you're under the age of 40 and have normal DHEA levels (at least 130 mg/dL for women and 180 mg/dL for men) then DHEA supplements is not for you. If you're under the age of 40 and have normal DHEA levels (at least 130 mg/dL for women and 180 mg/dL for men) then DHEA supplements is not for you. 2  When taking DHEA you should monitor your blood levels every 6 months. 3  So far, there's still no reliable study on the long-term safety use of DHEA.