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leptin

leptin

8 7.4
A hormone made by fat cells that tells the brain to make you feel less hungry
  • noun
  • /ˈlɛptɪn/
  • Specialized
: leptina
  • And we think that resistance to this key fat cell hormone leptin is part of that process.
  • leptin hormone
  • insulin and leptin
  • leptin levels

When you actually have a lot of leptin, you are not that hungry.

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Examples

  • When you actually have a lot of leptin, you are not that hungry.

  • Together, these studies suggest that body fat produces leptin, and this hormone signals the brain to begin puberty.

    Academic text (2004)
  • So after two days of four hours less sleep, leptin levels go down.

  • How long does it take for the leptin levels to come down?

    Blog text (27)
  • So if you want more leptin, eat more protein.

  • When we have a high level of leptin, we get hungry, so we eat.

    Blog text (25)
  • Ghrelin helps the body know when to eat, and leptin helps the body know when to stop eating.

    Blog text (6)
  • And when vitamin D level is low, leptin, the hormone that tells you to stop eating doesn't work.

  • One of these is called leptin, and that is an appetite suppressant hormone that's released by our own fat in our body.

  • Leptin, a hormone produced by fat cells, helps regulate appetite and body weight.

Surface Forms

leptin singular
leptins plural

Morphology

leptin = lept + in

Formed from the combining form 'lept-' plus the protein suffix '-in'; neither element is a standalone common English word, so learners cannot reliably derive the biomedical meaning from the parts.

Etymology

Leptin comes from the Greek word leptos meaning 'thin' plus the common protein ending -in. So the name points to thinness and body fat, which fits because leptin is the hormone that tells the brain how much fat you have and helps control hunger and weight.