Electromagnetic spectrum refers to the full range of all frequencies of electromagnetic radiation and also to the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. Devices used to measure an electromagnetic spectrum are called spectrograph or spectrometer.
Another way that alcohol affects the endocrine system is by interfering with how the body absorbs calcium, a chemical needed for strong bones. As a result, people who drink heavily may be at a higher risk for osteoporosis, a disease in which bone density declines.
Symptoms. Pain is the main symptom of endometriosis. You may have: 1  Painful periods. 2  Pain in your lower belly before and during your period. 3  Cramps for a week or 2 before and during your period. 4  Cramps may be steady and range from dull to severe. 5  Pain during or following sexual intercourse. 6  Pain with bowel movements.