Hair is made up of proteins called keratin and melanin, which are arranged in a cortex. The cortex determines the hair’s natural shape, which is determined by the follicle. Heat styling rearranges the proteins by breaking the hydrogen bonds between them. This is a temporary change. Permanent...
Untangling the science of curly hair They are the scientific discoveries that hide in plain sight: the mechanics behind ordinary phenomena such as thephysics of bursting soap bubblesorhow cats lap up milk. Now, a small team of researchers from the Massachusetts Institute of Techno...
The science behind hair Solving real hair problems with innovative engineering. The hair lifecycle Lifespan of a hair in years Up to 100 hair strands are lost each day There can be as many as 150,000 hairs on a human head Science, not guesswork ...
Since the active growth period of your hair cannot be changed, it’s important that you optimize your hair growth during its active phase so that you know your hair is growing as much as it can during that time. Most times, optimizing the Anagen phase comes down to improving diet, making...
black hair, and brown eyes. They were supposed to be severe, conceited, and governed by opinion. Africanus were thought to have dark skin, curly hair, and possess cunning, passive, and inattentive attributes. They were thought to be ruled by impulse. Linnaeus described Europeaus as adaptable,...
Curly hair is the most challenging type of hair to manage, but it can be well worth the effort. Curly hair is often dry and prone to frizz, so you need to use a good conditioner and leave-in treatment. You should also avoid using heat on your hair, which can further damage it. Ins...
Patients present with intense itching, and both lice and nits may be found on pubic hairs as well as on the hair of the chest, abdomen, and legs. Pubic lice may occasionally cause scalp infestation in patients with thick curly hair. They may also infest the eyelashes. Maculae ceruleae may...
When the F-layer breaks off, there are water-attracting (hydrophilic) groups left behind. Damage also leaves the hydrophilic proteins of the hair more exposed. These all acquire a negative charge in water, so damaged sections of hair are more negatively charged than the undamaged portions. ...
The girl shook her head violently as the woman drew out her pillowcase and tied the girl’s hands behind her back. The woman had already made up her mind: it would be her turn to make her debut on the stage. Just yesterday, a new theory of the laws of the universe had occurred to...
The sounds that arrive from the front and sides of your face are enhanced by pinna. Meanwhile, the sounds from behind you are reduced, creating small differences in the volume of a sound heard by both ears. Collectively, this difference in arrival time helps us locate the source of the sou...