People care for Nail, Hair etc, nothing wrong, care also your stomach, a silent worker.
You care for your pen, cycle,bike and car. It has a limited life. Even your Benz engine has limited life period.
Your stomach engine is live as long as you breath.
You don't put kerosene for your engine, you don't eat rubbish food which will harm your life engine.
TAKE CARE OF YOUR STOMACH