Most of the answers have focused on the advantages of a written constitution, and clear disadvantages of an oral/unwritten one. However, the seeds of the disadvantages to a written constitution are also there. For example, it can concentrate greater power in the judicial branch that interprets it, rather than the legislature, which gets to daily decide what the constitution is when it is essentially unwritten.
Time Commitment. A treadmill can help you lose weight and tone all areas of your body, as long as you spend enough time on it. Depending on how rigorous your workout is, plan to spend between one and a half and three hours a week walking, jogging, or running.
Treadmills can help you tone. A treadmill does more than boost your cardiovascular health. It builds muscle mass in the muscles you use -- like your legs, thighs and buttocks -- but it also helps tone these parts of your body. Since a treadmill works your core, your stomach and abdominal muscles, as much as it does other parts of your body, you can also tone your stomach while using a treadmill.