you have asked the age of humanity The age of humanity refers to the length of time that humans have existed as a species on Earth. The exact age of humanity is a subject of ongoing scientific research and debate, but it is generally agreed that the human species, Homo sapiens, first appeared on Earth around 300,000 to 200,000 years ago. This estimate is based on the study of fossils, genetic data, and other evidence, which have been used to reconstruct the evolutionary history of the human species. The oldest known fossils of anatomically modern humans (Homo sapiens) have been found in Eastern Africa, specifically in Omo Kibish Formation in Ethiopia and in the Middle Awash area, dated around 195,000-160,000 years ago. It's worth noting that while Homo Sapiens are the only remaining human species in the world, our genus Homo has been around for around 2.8 millions years, but different species of Homo evolved and went extinct before H. sapiens emerged. It's important to note th...
Hello Friends! I am Suhan Ahsan And now I am very excited to share with you My This article. In the world, some people think inflation is the problem of the world,Some people think that Education is the problem of the world. They are right in one way but in my opinion lifestyle is one of the biggest problems in the world. Let's take One example in Today's article “Sleeping pattern” what is sleep: Nerve-signaling chemicals called neurotransmitters control whether we are asleep or awake by acting on different groups of nerve cells, or neurons, in the brain. Neurons in the brainstem, which connects the brain with the spinal cord, produce neurotransmitters such as serotonin and norepinephrine that keep some parts of the brain active while we are awake. Other neurons at the base of the brain begin signaling when we fall asleep. These neurons appear to “switch off” the signals that keep us awake. Research also suggests that a chemical called adenosine builds up in our blood whil...