Eating a high-fat diet would most likely influence the risk of getting
pancreatic cancer. The pancreas is in the abdomen. It converts the food
we eat into energy for the body's cells. People who ate high amounts of
saturated fats had higher rates of pancreatic cancer than did those who
ate low amounts because the pancreas have to release more hormone to
digest it
The answer is obsessive-compulsive disorder. Compulsive and usually unwanted thoughts and actions (rituals) are the common features of the disorder. Although OCD is usually associated with repeating the actions over and over, such as obsessive hand-washing or having to flick a light switch a certain number of times, many people who suffer from OCD struggle with frequent unwanted thoughts and images.
On which one? There’s questions here
Probably spreading depends on the context you probably should add
A) The National Institute of Mental Health Website