Bulbar onset ALS affects speech and swallowing first. Learn about its early symptoms, how it differs from limb onset ALS, and what to expect over time.
Groundwater pollution threatens drinking water and ecosystems worldwide. Learn what causes it, how it affects health, and what cleanup actually looks like.
Early stage alcoholic dementia affects memory and thinking in ways many people miss. Learn what causes it, how it's detected, and whether it can be reversed.
Chili peppers originated in South America, were domesticated in Mexico, and spread globally through European trade routes. Here's how they got everywhere.