In 1 Tim. 5:23, Paul tells Timothy to "drink a little wine for the sake of your stomach because you are sick so often" (Living Bible).
To many of us today, the exhortation would be most appropriate.
In essence, Paul is telling Timothy to take care of his body.
And to use all due means of doing so.
God can and does use us when we're ill.
But a healthy body is helpful in the service of God.