Many parents become concerned when their child is not talking at 2 years old or uses only a few simple words. Some children start building sentences early, while others develop more gradually. But where is the line between individual variation and a situation that warrants attention?

When rashes, skin itching, persistent runny nose, shortness of breath, or wheezing appear, many people look for the cause not in an allergist's office, but in the concept of a "toxin-laden body." The internet is full of advice: cleanse the liver, do a detox, flush out toxins, check for parasites, or "restore gut health."

Heartburn after eating, stomach heaviness, nausea, belching, acid taste in the mouth, or pain in the upper abdomen — symptoms that many people try to ignore for months. Some attribute them to stress, poor diet, or "just gastritis," while others keep taking medications that only temporarily relieve the discomfort.