Health

So many cereals out there, and only one breakfast! We help you pick the most nutritious -- and yummiest -- kinds out of the hundreds available.

You probably feel pretty attached to your memories -- they're yours after all. But one conversation with Elizabeth Loftus may shake your confidence about everything you think you remember.

Neuroscientists love Aplysia. They are a type of sea slug that grows to be about a foot long. With only 20,000 nerve cells -- compared with about 100 billion found in the human brain -- Aplysia are the perfect lab animals for brain researchers hoping to isolate a crucial connection.

Zach Sobiech, 18, passed away this morning, surrounded by family and loved ones.

Texans star J.J. Watt surprised one of his biggest fans after he learned he named his robot after him.

Dr. Marguerite McDonald has spent years studying ways to help people see better.

Romance may be getting short shrift among college students these days, replaced instead with quick "hookups" devoid of any real emotion, a new book argues.

A 10-year-old boy plans to run seven marathons on seven continents. CNN's Suzanne Malveaux reports.

Flesh-eating bacteria amputee Aimee Copeland now uses the latest technology in prosthetic hands to chop vegetables, pick up tiny items like Skittles, and comb and iron press her hair.

Nicknamed the "kissing disease," mononucleosis or glandular fever is a viral illness that can linger for weeks, months or even years. CNN investigates its prevalence within the sport of tennis.