Sugar makes mice sleepy
Glucose injections trigger nerve cells to spur slumber
![sugar data](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/07/ls_sugar.png?fit=860%2C460&ssl=1)
SUGAR SHOCKER In the two hours after an injection of glucose into the brain, mice fell into slow-wave sleep faster and stayed there longer (top) than mice injected with a non-sugar solution (bottom).
Varin et al/Journal of Neuroscience 2015, Dream79/Shutterstock