Indian Afro Malaysian Hair
These characteristics of water can determine the amount of dye that is absorbed into the hair, how your shampoo and conditioning will work on your hair, look & feel of hair after drying. A study published in 'Sci Total Environ. 1999 Oct 1;239(1-3):189-93' has mentioned that uptake of minerals by the hair varies depending on the initial total hardness and pH of the water. The study was conducted to see the uptake of minerals like calcium & magnesium by human hair from waters of 24 different locations throughout the world. The findings have shown that water of high initial total hardness or high initial pH resulted in more absorption of minerals. Acidity or mineral content varies in local water supply from day to day. Chlorinated, mineralized or fluorinated house water can also affect your hair.When the injections stopped, the castrated twin stopped losing his hair and even started to re-grow his hair. So the Doctor determined that testosterone might be connected with hair loss.In the 1940's, another study was performed to determine if heredity had anything to do with hair loss. The study was performed on men who had been castrated before puberty, for medical reasons, and their male relatives. Castrated males were infused with testosterone. Those castrated men whose relatives had lost their hair, started losing their hair. Those, whose relatives did not have any hair loss, did not lose their hair. When the injections stopped, those castrated men who were losing their hair, started to re-grow it again.This experiment showed the connection between heredity and hair loss.