Medicine & TechnologyFor more than 350 years, scientists believed that sperms wriggle as they swim. But a new study using 3D microscopy revealed that they roll like the otters while swimming.
Researchers discovered that stem cells taken from fat tissues have growth hormones that can work on hair. Volunteers ribbed the solution into their scalp twice a day, and 16 weeks later, researchers found a significant increase of hair follicles on the volunteers' heads.