No matter what you have earned like money, power, or mansions, you aren't able to enjoy it having a unhealthy body. Yes, you have wealth and power but you're unhealthy, if you d*e, would you benefit from all that money. Can you use money under your grave? No. So it is important to take care of yourself first.
A team or a group usually formed based on one similar goals or point of views among the members and a lot of them set up a couple of rules to be imposed among their members to prove that they're committed to the group and its cause.
