In addition to the sciatic nerve, many other nerve roots in the lumbar spine transmit nerve signals to the legs. Therefore, a bulging disc at any point between the five vertebrae of the lumbar spine (L1 to L5) or between the bottom of the lumbar spine and sacrum (L5 to S1) could result in leg pain.
Ipod nanos last about a good 12 hours on a fully charged battery. The time varies depending on how often you stop it from going on continuously.pod nanos last about a good 12 hours on a fully charged battery. The time varies depending on how often you stop it from going on continuously.
The real killers of lithium batteries(the kind in your phone), is heat & frequent full discharge/recharge cycles. They have a design life of 3 ~ 5 years, & will last much longer if not subjected to frequent discharge cycles below 40% of capacity. Apple recommends you let your battery fully discharge/recharge once a month...every couple of months will be just fine. So, to maximize your battery life, charge your phone as often as possible & avoid high heat.