The Hormones that Guide Our Body
The Hormones that Guide Our Body
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The Hormones that Guide Our Body
What do you already know about hormones and their effects?
Learning Objective
At the end of the lesson you will be able to describe the roles of T3, T4, melatonin, PTH, calcium, thymosins, and their effects on sleep cycles and the immune system.
T3 & T4: Boosting Energy
T3 (triiodothyronine) and T4 (thyroxine) are thyroid hormones. They regulate your metabolism, energy levels, and growth. Imbalances can lead to tiredness or hyperactivity.
Melatonin and Sleep Cycles
Melatonin is produced by the pineal gland mostly at night. It helps control your sleep-wake cycle, signalling your body when it’s time to sleep.
Parathyroid Hormone (PTH) & Calcium
Calcium
PTH
The parathyroid glands produce PTH, which maintains blood calcium balance by acting on bones, kidneys, and intestines.
Calcium is vital for bone health, muscle contractions, and nerve signals. It comes mainly from the diet and is stored in bones.
Thymosins and Immunity
Thymosins are hormones made by the thymus gland. They help develop T-cells, which are essential for a strong immune system.
The Immune System in Action
Hormones like thymosins support the immune system to defend against diseases. A balanced hormone system keeps immunity strong.
Quick Recap
We explored how several hormones affect energy, sleep, calcium levels, and immunity. Keeping these hormones in balance is essential for health.
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.
