A study of the water-dwelling hydra found that the organisms show signs of sleep despite not having a brain or central nervous system, suggesting that animals acquired the need for sleep before developing brains.

Oolong tea, which lies somewhere in between green and black tea, increased fat oxidation overnight when people consumed 2 or more cups of the tea per day.

The main bioactive compound in ginger, 6-gingerol, counteracts some of the mechanisms that fuel the autoimmune disease lupus, and its associated condition antiphospholipid syndrome.

Oxidative stress (excessive free radicals and inadequate antioxidants to neutralize them) links gum disease to kidney disease. A 10% increase in gum inflammation increases kidney failure risk by 32%.