Updated 11/24/2024 The thyroid is an organ that releases hormones into the atmosphere. The complexity of these hormones released by the thyroid can be composed… Read More »Thyroid. What can it do?

Updated 05/12/2024 To understand muscles, you have to know about H2O, water, and oxygen and hydrogen, gases in water. You also have to know what… Read More »Muscles.

Updated 23/02/2025 In this video, I show you some of my gray hair. The hair cells that form the white streak in the transparent video… Read More »Gray hair or white hair, melanin and melanocytes.