If a bag of popcorn has 4G of fat in a 200 calories bag, what % of calories are made of fat

Nail fungus, which can cause the nails to crack, peel and change color and texture.

Behavioral science is the study of human behaviors and how they can be influenced.  by examining patterns in behavior as well as reactions, individuals with behavioral problems can be more adequately treated, resulting in greater mental health of our society/the public.