字幕列表 影片播放 列印英文字幕 Have you ever thought about how you get feelings of being excited moody or even hungry No matter how you are feeling right now Your body is producing very specific chemical messages to regulate these exact feelings these chemical messages control most of your bodily functions Regulating your body temperature how sleepy you are. How emotional or how stressed you are They can contribute to how much fat your body stores and where it keeps it and also controls when you start puberty The chemicals that control all of these feelings are called hormones, but what exactly are hormones and how do they work? Make sure you hit the subscribe button and press the bell icon to be notified about future videos Hormones are tiny single molecule messengers, which take messages to other parts of the body when released into the bloodstream They are produced and released by endocrine glands the hipa thalamus regulates body temperature Hunger thirst sleep sex drive and moods and it controls the release of hormones from other glands in the body the pineal gland regulates sleep The pituitary gland controls metabolism growth when you go through puberty reproduction blood pressure and much more The thyroid produces hormones, which regulate the body's metabolic rate parts and digestive functions muscle control brain development and bone maintenance the parathyroid Regulates calcium levels in the body the thymus produces t-cells which are a crucial part of the immune system The pancreas produces the insulin that helps control blood sugar levels the adrenal gland controls sex drive and produces cortisol the stress hormone, and of course adrenaline in Women the ovaries produced female sex hormones like estrogen and progesterone and in men the testes produce male sex hormones called androgens like testosterone So really hormones have a part in regulating almost everybody process the pituitary gland is often referred to as the master gland as it controls many of the others and The pituitary gland takes orders from the hipper thalamus so these two are like the control center for the body Let's look at how this works in a bit more detail. Have you ever felt an adrenaline rush? Maybe you've ridden a roller coaster and your heart was racing Or perhaps you've been watching a scary film and a sudden noise makes you jump This is the result of your brain thinking you're in danger and releasing hormones to prepare you for a fight or flight response Firstly the hipa thalamus tells the pituitary gland about ins which in turn releases a chemical messenger into the bloodstream The hipa thalamus also sends a nerve signal down the spinal cord, which is quicker Both the messages Lander the adrenal gland which reacts by producing adrenaline and sending it into the bloodstream The adrenaline binds to different organs and produces many effects including faster heart rates heightened alertness rapid breathing widened pupils This is just one of the many hormonal reactions that take place in the body But it shows us how the glands talk to each other using hormones to relay messages that have real physical effects on the body Humans have harnessed the power of hormones to their advantage for example many forms of birth control Use estrogen and progesterone to affect a woman's menstrual cycle and stop the release of an egg amongst other effects This means a woman can take hormones to stop herself becoming pregnant when she doesn't want to someone with type 1 diabetes Cannot produce the hormone insulin Which is usually produced in the pancreas and therefore must inject it into their body in order to regulate blood sugar levels Without this option a type 1 diabetic would suffer from serious health problem Oxytocin known as the love hormone is released when cuddling being intimate with a partner or even playing with a dog Studies have shown that the hormone can reduce blood pressure which reduces the risk of heart disease It can also block stress hormones help heal wounds and even reduce swelling Make sure you hit the subscribe button and press the bell icon to be notified about future videos We would love to know your thoughts on this subject and the video as a whole so please leave a comment below
B2 中高級 荷爾蒙控制你 - 荷爾蒙和內分泌系統 - 美麗的科學 (HORMONES CONTROL YOU - Hormones and the endocrine system - Beautiful Science) 9 3 Summer 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字