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A recent clinical trial found that both classic Mediterranean and green Mediterranean diets significantly slowed age-related brain shrinkage by about 50% over 18 months.
The tissue in the brain can be classified into white matter and gray matter. Gray matter contains the cell bodies of the nerve cells, whereas white matter consists of nerve fibers that transmit ...
Sleep plays a vital role in regulating metabolism and appetite. When sleep deprived, the metabolic system will be out of balance, which will ultimately affect the dietary choices people make. Teens who are sleep deprived crave more carbohydrates. Sleep deprivation is a risk factor for obesity among young adults. [7] [medical citation needed]
A new study offers an explanation as to how deep sleep — also known as slow wave sleep — helps support the formation of memories in the brain, which could help with preventing dementia.
Sleep deprivation increases the level of ghrelin (hunger hormone) and decreases the level of leptin (fullness hormone), resulting in an increased feeling of hunger and a desire for high-calorie foods. [90] [91] Sleep loss is also associated with decreased growth hormone and elevated cortisol levels, which are connected to obesity. People who do ...
Endothelin functions through activation of two G protein-coupled receptors, endothelin A and endothelin B receptor (ETA and ETB, respectively). [2] These two subtypes of endothelin receptor are distinguished in the laboratory by the order of their affinity for the three endothelin peptides: the ETA receptor is selective for ET-1, whereas the ETB receptor has the same affinity for all three ET ...
In brain tissue, atrophy describes a loss of neurons and the connections between them. Brain atrophy can be classified into two main categories: generalized and focal atrophy. [2] Generalized atrophy occurs across the entire brain whereas focal atrophy affects cells in a specific location. [2] If the cerebral hemispheres (the two lobes of the ...
Normal blood vessel (left) vs. vasodilation (right) Vasodilation, also known as vasorelaxation, is the widening of blood vessels. [1] It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. [2]