Polycythemia can result from internal problems with the production of red blood cells. This is termed primary polycythemia. If polycythemia is caused due to another underlying medical problem, it is referred to as secondary polycythemia.
PMS can last 1-2 weeks. Premenstrual syndrome (PMS) is characterized by a number of symptoms related to a womanâs menstrual cycle. They occur a week or two before monthly menstruation begins, and ordinarily, they disappear at that time.
According to many tests, Duracellâs AA rechargeable batteries last longer than Energizerâs. This is surprising because Energizer has a higher mAh rating, which implies that the battery should last longer. These tests found that, on average, Duracellâs batteries will last about five to six hours before dying, but Energizer only lasts about three to four hours.