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.
According to the National Institutes of Health (NIH), the recommended vitamin C daily allowance (RDA) for adults over age 19 is: 1  men, 90 mg per day. 2  women, 75 mg per day. 3  pregnant women, 85 mg per day.  breastfeeding women, 120 mg per day.