Upper respiratory allergies and inflammation and swelling of the adenoids, the tissue at the back of the nose, can cause poor fluid drainage from the middle ear to the external ear and therefore cause a blockage in the Eustachian tube. Excess fluid can lead to middle ear congestion.
1 Black skin and Asian skin have thicker and more compact dermis than white skin. This is also why blacks and Asians have fewer facial wrinkles than whites. 2  Black skin has more casual lipids and more moisture in the stratum corneum than white skin.  Black skin has 50% lower ceramides than white or Hispanic skin.
An Egyptian, and an Arab | Baher IbrahimAn Egyptian, and an Arab | Baher IbrahimAn Egyptian, and an Arab | Baher Ibrahim. Read more Read more. There's also the fact that ancient Egyptians didn't really perceive themselves as either black or white.. Just look at the above painting from Pharaoh Seti I's tomb. The top right group, with the palest skin are Libyans (Berbers), the next one over to the left are Nubians, followed by Asiatics (Mesopotamians).