Just as a person's vitals can identify clinical deterioration the lack of worship can indicate poor health in a believer. Being that we serve what we worship, a changed object of worship is a changed allegiance in our service. Worship has been greatly attacked from the beginning of time because it will be the vice of the anti-Christ. The anti-Christ will attempt to be revered above God. Therefore, worship is a vital sign because if we sway now we may succumb then.