Athletes use a combination of strength training, diet, and nutritional supplementation to induce muscle hypertrophy. Muscle hypertrophy involves an increase in size of skeletal muscle through a growth in size of its component cells. Two factors contribute to hypertrophy: sarcoplasmic hypertrophy, which focuses more on increased muscle glycogen storage; and myofibrillar hypertrophy, which focuses more on increased myofibril size.
CD media. Compact discs hold 700MB of data (equivalent to 80 minutes of audio, hundreds of high-quality digital images, and small video files). Unlike DVDs, CDs are not yet available in double-sided or dual-layer formats.
The long-term reliability of optical discs is still unknown, so there are no certain answers. All my backups are on write-once CD-R discs, which I reckon is the best bet for data you want to last 10 or more years. Their main limitation is that a CD will only store about 700MB of data. That was fine when I started, but it is becoming less viable every year.