Cognition is the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.[1] It encompasses processes such as knowledge, attention, memory and working memory, judgment and evaluation, reasoning and computation, problem solving and decision making, comprehension and production of language.
Impaired glucose tolerance (IGT): A person is said to have impaired glucose tolerance when the fasting plasma glucose is less than 126 mg/dl and the two hour glucose level is between 140 and 199 mg/dl. This is sometimes referred to as prediabetes because people with IGT have a higher risk of developing diabetes.
1 Fasting means don't eat any food or drink anything other than water before your blood collection. Continue taking all medication as prescribed and drink plenty of water. 2  Fasting is generally 8-12 hours, however check with your doctor about requirements.  Glucose tolerance tests may take up to 4 hours.