Being a human is a hypnotic fact but why are humans becoming shorter. There are a lot of reasons that vary from agriculture to shortage of vital micronutrients which cause nutritional diseases. When the human species decided to switch from hunting to farming, that factor depended on different lifestyle demands. Nutritional diseases are also caused by the dominant class taking most food. We also have to put in mind the ratio of the human body to the brain size, so as the bodies decreased brains decreased as well, which is caused by the huge amount of energy required to maintain large brains this will result in the need to save energy for the increased number of tasks, even though brains are evolving by becoming smaller but more efficient. 
SARAH SAKER

 

 

Scientists say that people have became shorter than before and some predicted reasons include lack of nutrients like vitamins, a change from hunting to agriculture and social imbalance. They also say that brains have become smaller in size because of development and change, big amount of energy needed to sustain large brains and the need to save power for increased number of tasks. 

People in the modern day have shrunk in both their physical structure and brain size what may have caused this change? 

Anatomically early Homo sapiens have emerged as hunters with mighty chests and bigger brains ,opposing to this humans nowadays have primarily switched to farming a skill that doesn’t require strength. Lack of nutrition is also an important aspect farmers have mostly relied on cereals that lacked niacin 

Having a larger brain requires lots of energy. In our modern day work has increased, and the amount of tasks a person should do on a daily biases has also increased, due to this drastic change human brains have shrunk to save energy.