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.
Supplemental DHEA will increase androgen (male sex hormone) levels in women; and at some dosage women will experience the effects of this. At doses above 100 mg. per day these androgen effects may begin to show up in things such as increased facial hair. These effects are slow to develop and reversible, though.