disease

"It's possible this ability to digest dairy was important to survival during periods of crop failure, food scarcity and disease," Narasimhan said.

Researchers have found education can be a predictor of better cognitive performance, memory function, life expectancy and delayed onset of Alzheimer's disease or dementia.

IBD includes two primary types: ulcerative colitis, which affects the colon, and Crohn's disease, which can inflame any part of the digestive tract.

Sleep research has exploded in recent years, with thousands of animal studies exploring how insufficient sleep impacts risk of diseases like diabetes, obesity, Alzheimer's and immune disorders -- and how such diseases impact sleep.

They're also susceptible to diseases like brown rot, which can be triggered after heavy storms.