A hair analysis uses special techniques to look closely at your hair under a microscope ... Family links: Analyzing hair follicles side by side sometimes can show if people are blood relatives.

Derek Pye, chief technician of the research group and co-author of the study, added: 'When we look at hair follicles under the microscope, it's striking how consistent the response is between hair ...

Derek Pye, chief technician of the research group and co-author of the study, reported, “When we look at hair follicles under the microscope, it’s striking how consistent the response is ...

Derek Pye, chief technician of the research group and co-author of the study, added: 'When we look at hair follicles under the microscope, it's striking how consistent the response is between hair ...