1 night without sleep affects insulin resistance as much as 6 months of high fat diet (vitamin D not mentioned)

Insulin sensitivity: One night of poor sleep could equal six months on a high-fat diet, study in dogs suggests

Science Daily reporting on poster presented Nov 5 @ Obesity Conference

Speculation by VitaminDWiki: Sleep deprivation consumes Vitamin D – very quickly

• Google query for "sleep deprivation" "vitamin d" 352,000 hits as of June 2019

• 4.5X more likely to catch a cold if low sleep - hypothesis - due to low vitamin D

• Poor sleep strongly associated with pain in seniors (both associated with low vitamin D) – March 2015

• Sleep longer if have more vitamin D – many studies

• Severe Sleep Loss Reduced Immune System – wonder about vitamin D reduction – July 2012