Food allergy symptoms can start quickly after eating and may last from minutes to a couple of days. Seasonal allergy symptoms can last for weeks or even months if exposure to the allergen continues.

Shellfish allergy symptoms typically develop within minutes after ingesting seafood or shellfish. They can last from several hours to a few days, depending on the severity of the reaction and the ...

Chronic stress can elevate heart risks, disrupt sleep, and weaken immunity. Learn how long-term stress harms the body and ...