An electronic cigarette or e-cigarette is a handheld electronic device that vaporizes a flavored liquid. The user inhales the vapor. Using e-cigarettes is often called vaping. The fluid in the e-cigarette, called e-liquid, is usually made of nicotine, propylene glycol, glycerine, and flavorings. The health risks of e-cigarettes are uncertain. While they are likely safer than tobacco cigarettes, the long-term health effects are not known.
The average blood loss during menstruation is 35 milliliters with 10-80 mL considered normal. Any blood loss during periods which is more than this can cause iron deficiency anemia and needs to be evaluated.he average blood loss during menstruation is 35 milliliters with 10-80 mL considered normal. Any blood loss during periods which is more than this can cause iron deficiency anemia and needs to be evaluated.
See a picture of a woman's reproductive system. The menstrual cycle is measured from the first day of menstrual bleeding, Day 1, up to Day 1 of your next menstrual bleeding. Although 28 days is the average cycle length, it is normal to have a cycle that is shorter or longer.1  A teen's cycles may be long (up to 45 days), growing shorter over several years.enstrual period. On Day 1 of your cycle, the thickened lining (endometrium) of the uterus begins to shed. You know this as menstrual bleeding from the vagina. A normal menstrual period can last 4 to 6 days. Most of your menstrual blood loss happens during the first 3 days.