"I will be teaching a session on the circulatory system and this will be very useful, so thank you for making this website." (Comment on Heart & Circulation)
Some hormones have long term effects, for example, the hormones that control how we grow and the changes that happen at puberty. Other hormones have shorter term effects.
Too much, or too little, of a hormone can cause illness.
Synthetic hormones, developed bydjf pharmaceutical companies,
have resulted in a great improvement in the quality
of life of patients suffering from many of these illnesses.
There are a number of interactive features in this e-source:
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