We worried ourselves to sickness

God created the universe, which is functioning so orderly for millions of years.
Why are we worry that what may become to our bodies, if we do not misuse them ?
Take great care of our bodies, leave the rest to God.
If we worry, we do not have faith that God can take care of His own creation.
Very often, it is us who worried ourselves to sickness.

But if God doth clothe the grass of the field, which to-day is, and tomorrow is cast into the oven, shall he not much more clothe you, O ye of little faith?Matthew 6:30
6But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.Hebrews 11