Sex hormones: Low estrogen levels due to missing menstrual periods or to menopause can cause osteoporosis in women. Low testosterone levels can bring on osteoporosis in men. Anorexia nervosa: This eating disorder can lead to osteoporosis. Calcium and vitamin D intake: A diet low in calcium and vitamin D makes you more prone to bone loss. Medication use: Some medicines increase the risk of osteoporosis. Activity level: Lack of exercise or long-term bed rest can cause weak bones. Smoking: Tobacco is bad for the bones, heart, and lungs.
Compressed Versus Uncompressed. Digital audio can be split into two types of formats, compressed and uncompressed. Uncompressed formats like CD Audio, WAV, or AIFF are pretty much perfect representations of the audio that was recorded. If you convert something from one uncompressed format to another, it's a completely perfect copy.
Which is the difference between Audio CD and Data CD. An Audio CD is a music CD like that you buy in a music store. It can be played on any standard CD player (such as a CD deck, or your car CD player, or a portable CD player). Music is stored on Audio CDs as uncompressed digital data, no data is lost and quality is very high, exactly as in WAV digitally encoded files. When you put an Audio CD into your personal computer CD player and play it, audio is extracted on the fly and played by your PC sound hardware.