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An orexigenic, or appetite stimulant, is a drug, hormone, or compound that increases appetite and may induce hyperphagia. This can be a medication or a naturally occurring neuropeptide hormone, such as ghrelin , orexin or neuropeptide Y , [ 1 ] [ 2 ] which increases hunger and therefore enhances food consumption .
Knocking out vagal nerve receptors has been shown to cause hyperphagia. [4] Changes in hormones associated with the female menstrual cycle can lead to extreme hunger right before the period. Spikes in estrogen and progesterone and decreased serotonin can lead to cravings for carbohydrates and fats. [5] Polyphagia is found in the following ...
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Poor appetite can have numerous causes, but may be a result of physical (infectious, autoimmune or malignant disease) or psychological (stress, mental disorders) factors. Likewise, hyperphagia (excessive eating) may be a result of hormonal imbalances, mental disorders (e.g., depression ) and others.
Other mental health conditions, medications, and underlying medical issues can cause weight loss and changes in appetite. If you’ve noticed significant weight loss lately, it’s best to seek ...
A related phenomenon, specific appetite, also known as specific hunger, is conceptually related to, but distinct from, hedonic hunger. Specific appetite is a drive to eat foods with specific flavors or other characteristics: in usage, specific appetite has put greater emphasis on an individual who adaptationally learns a particular appetite ...
Anti-obesity medication or weight loss medications are pharmacological agents that reduce or control excess body fat. These medications alter one of the fundamental processes of the human body , weight regulation, by: reducing appetite and consequently energy intake , increasing energy expenditure , redirecting nutrients from adipose to lean ...
Others: frequently increased appetite and weight gain, rarely nausea, rarely high blood pressure. May increase or decrease liver enzyme levels in the blood of some people. [31] The side effects of low-dose doxepin for insomnia in long-term clinical trials (28 to 85 days) in adults and elderly people were as follows: [11]