This information sheet presents a list of abstract to concrete symbols that may be considered in developing an individualized alternative communication system. Individuals may use certain types of these symbols for expressive communication and different ones for receptive communication. Most individuals will probably use a combination of these symbols depending on their abilities, needs, motivation, and the demands of the communicative setting.
Research on leptin describes it as a hormone that plays a pivotal role in regulating food intake and energy output. Some researchers suggest leptin is our starvation hormone - rather than our obesity hormone.Leptin is a protein that's made in the fat cells, circulates in the bloodstream and goes to the brain.eptin resistance occurs when your leptin is high and you are overweight, but your brain cannot see it. In other words, your brain is starved while your body is obese. Some researchers have referred to this as brain starvation.
Leptin receptor deficiency is a condition that causes severe obesity beginning in the first few months of life. Affected individuals are of normal weight at birth, but they are constantly hungry and quickly gain weight. The extreme hunger leads to chronic excessive eating (hyperphagia) and obesity.