How do your hormones work? - Emma Bryce - Deepstash

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How do your hormones work? - Emma Bryce

How do your hormones work? - Emma Bryce

TED-Ed

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The endocrine system causes changes in your body

Our bodies undergo many extraordinary metamorphoses over the course of our lives.

We grow, go into puberty, and many reproduce. Behind the scenes, the endocrine system works to arrange these changes. This system regulates everything from sleep to the rhythm of your heartbea...

Glands and hormones

You have hormone-producing glands in your body,

  • three in your brain,
  • seven in the rest of your body. 

Each is surrounded by a network of blood vessels from which they extract ingredients to make hormones. These are pumped out in tiny amounts into the bloodstream.

The hormones need to find a set of target cells to bring about a specific change.

Receptors - the special proteins inside or on the cell's surface - help hormones find their targets. The receptors recognise specific hormones as they move past and bind to them.

Once this happens, the h...

The thyroid and the two hormones it produces

The two thyroid hormones, namely triiodothyronine and thyroxine, travel to the body's cells and influence how quickly those cells work and use energy.

In turn, that regulates everything from breathing to heartbeat, body temperature, and digestion.

Hormones during puberty

Both men and women have estrogen and testosterone but in different amounts.

In men, puberty starts when the testes begin secreting testosterone. That triggers the development of the sexual organs and causes the voice to deepen.

In women, estrogen secreted from the ovaries helps the bo...

Hormones can influence the production of certain chemicals in the brain, such as serotonin.

When chemical levels change, they can cause the mood to change. That doesn't mean that hormones have unlimited power over us, but they often drive our behaviour and make us slaves to their effects, f...

Disease, stress, and diet can disrupt the regulatory function, changing the way the cells respond, such as in diabetes.

  • Diabetes is a common hormonal disorder where the pancreas secretes too little insulin - the hormone that manages blood sugar levels. 

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