Nephila clavipes. Arachnology is the scientific study of spiders and related animals such as scorpions, pseudoscorpions, and harvestmen, collectively called arachnids. Those who study spiders and other arachnids are arachnologists. The word arachnology derives from Greek á¼ÏÎ¬ÏÎ½Î·, arachnÄ, spider; and -Î»Î¿Î³Î¯Î±, -logia
Heavy Menstrual Bleeding: Symptoms and Treatment. Heavy menstrual bleeding (called menorrhagia by health care professionals) is defined as soaking a pad and/or tampon every hour or less during each menstrual cycle. For many women, heavy menstrual bleeding is a huge obstacle to their lifestyles.
1 Fibroids â These non-cancerous muscular growths on the uterus can cause you to have heavy menstrual bleeding and long periods. 2  Submucosal fibroids, which are found in your uterine cavity, cause prolonged, heavy periods. 3  Fibroids are very common in women of reproductive age, since estrogen fuels their growth.