Author: MADDIE BENDER, CNN

What you need to know about vitamin D

You may have seen supplements containing vitamin D at your local convenience stores or been tested for deficiency by your doctor. But what is vitamin D, and why do we need it?

Colleges, courts grapple with role of companion animals

A 15-year-old girl took the witness stand to testify against the accused, detailing extensive sexual abuse. David Crenshaw, the clinical supervisor of the girl's therapist at the time of the June 2011 trial, said he and the therapist did not think she would be able to go through with it.

Amid seizures, man sketched his 'beautiful' hallucinations

At first, he would see a colorful circle. It would grow a shimmering, flashing tail "dripping" down, which he compared to fireworks. "It's beautiful!" he said of one of these episodes -- but they gave him headaches, blinded him when they occurred and left a visual deficit in the right field of his vision for minutes after they subsided.

Liver cancer death rate in US surged 43% in 16 years

Death rates from liver cancer increased 43% for American adults from 2000 to 2016, according to a report released Tuesday by the US Centers for Disease Control and Prevention's National Center for Health Statistics. The increase comes even as mortality for all cancers combined has declined.