Chlorophyll is vital for photosynthesis, which allows plants to obtain energy from light.Chlorophyll molecules are specifically arranged in and around photosystems which are embedded in the thylakoid membranes of chloroplasts. In...
If your menstrual blood varies in color and consistency throughout your monthly period, it's very likely that it's perfectly normal. There are times, though, when changes in color, thickness, or clotting may indicate a menstrual blood...
Troubling physical and emotional symptoms that occur between the time of ovulation and the first days of the menstrual period are called premenstrual symptoms. Premenstrual symptoms...
Keep a calendar and mark the day you start your menstrual period each month. If your cycle is regular, it can help you predict when you'll have your next period. It's also important to know the date of your last menstrual period (LMP)...
What is a menstrual cycle?The menstrual cycle is the series of changes a woman's body goes through to prepare for a pregnancy. About once a month, the uterus grows a new lining (endometrium) to get ready for a fertilized egg . When...
Premenstrual dysphoric disorder (PMDD) is a condition marked by severe depression symptoms, irritability, and tension before menstruation. These symptoms are more severe than those seen with premenstrual syndrome (PMS).CausesThe causes...
Also called: PMSPremenstrual syndrome, or PMS, is a group of symptoms that start one to two weeks before your period. Most women have at least some symptoms of PMS, and the symptoms go away after their periods start. For some women,...