Hair is one of the primary things one notices in a person at the first glance. In contrast to other animals, the purpose of human hair is up for debate. However, hair may be a fantastic aesthetic tool and form of nonverbal communication. One of the most distinctive characteristics of people is their hair colour, which can range from red to black, brown, and blonde. Melanin, a pigment made by neural crest-derived melanocytes, is what gives human hair its colour. The two forms

Electrosurgery is defined as the use of a high-frequency electrical current to tissue to achieve a desired clinical result.

SaMD use technology and connectivity to devices and people that are continuously monitoring effectiveness, safety, and performance.