The inside of stars is under such immense temperature and pressure (15 million degrees Celsius), those hydrogen atoms can fuse to form helium atoms. This releases a huge amount of energy which makes the stars shine brightly. For stars that are more than 25 times larger than the sun, they continue fusing heavier elements like iron, to release energy. Iron releases less energy than it takes to fuse so at this point the star begins to collapse in on itself, generating an enormous pressure wave which then causes to star to explode as a supernova. This releases so much energy that the supernova can outshine an entire galaxy, and in the process produce the heavier and rarer elements.
When the Earth was formed, the iron floating around in space gathered to form the inner and outer cores. Iron-rich meteors continued falling on the Earth’s surface, making iron the second most abundant metal in its crust. The Majestic Quran tells us “We sent our messengers with clear proofs, the Book, and Scales of Justice, so people may establish justice. We sent down the iron; a strong (metal) with many benefits for people, to see who uses this to help Allah and His messengers, without seeing (Him). Indeed, Allah is the Strong, Almighty. (Al-Hadid:25)
The Quran claims “We sent down the iron” this is corroborating the recent scientific discovery that Iron is from stardust.
Iron is an essential element in the biology of nearly all living organisms. It is involved in many vital processes such as oxygen transport and respiration. The oxygen attaches to the iron-containing molecules in the red blood cells, which transport it around the body.
The brain is very metabolically active so iron has a large influence on its ability to function properly. Iron plays a role in regulating the number of free electrons from the various biochemical reactions. The brain regulates its own iron levels which increase in childhood, but high iron levels, usually in old age, are linked to many neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease and Huntington’s disease.