Researchers for the first time comprehensively describe existing abnormalities in brain function and structure of long-term marijuana users with multiple magnetic resonance imaging (MRI) techniques. Marijuana. The effects of chronic marijuana use on the brain may depend on age of first use and duration of use. The effects of chronic marijuana use on the brain may depend on age of first use and duration of use, according to researchers at the Center for BrainHealth at The University of Texas at Dallas.
Feeding: The Adult German Shepherd Dog. The adult shepherd will eat approximately 40 pounds of dry dog food per month. Naturally, this will vary depending on the metabolism of each individual animal and it's activity level. Because dogs are born carnivores, many people supplement their dogs diet with meat protein, at least a few times per week.
Scientific research has shown that an adult dogâs daily diet can contain up to. 50% carbohydrates by weight, including 2.5â4.5% from fiber. A minimum of. approximately 5.5% of the diet should come from fats and 10% from protein.