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Author Topic: Human evolution in modern times  (Read 420 times)

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Offline gaden

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Human evolution in modern times
« on: October 20, 2021, 04:50:16 PM »
I think future humans will look like a pear.

As we all know humans have adapted physically to a differing environment to fit our needs.  The early hunter gather would be more muscular with upper body strength like Neanderthals.

With the advent with agriculture and new technology humans would look slim and tall because of less physical labor.  Limbs would be long and dexterous with tool variety.

Today there is more of a sedentary lifestyle and abundance of food.  There would be an adaptation to a need to sit with less physical activities.  So, humans will evolve flat flabby butts no shoulders.


Offline CoconutXO

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Re: Human evolution in modern times
« Reply #1 on: October 22, 2021, 06:11:26 PM »
The goal of evolution is always adaptation, which are characteristics that helps organisms to better survive (and thrive) in their particular environment. Being excessively overweight is inherently unhealthy because it can shorten a person's lifespan, so that would be considered devolution instead of evolution. The reason for the weight gain, in many cases, has to do with unhealthy eating habits. Eating foods release feel-good neurotransmitters like dopamine, which is why eating is often done for pleasure instead of satiating hunger. Eating is also a way to release stress for many. Interestingly, being excessively overweight isn't common in most places in the world, even in rich industrialized countries. You would rarely see morbidly obese ppl in Japan, for example. I think 2 meals a day is plenty, but many ppl are eating just way too much.



In any case, the goal of evolution is always adaptation, which doesn't necessarily leads to intelligence. Crustaceans like the horseshoe crab has remained unchange in form for millions of years. Same with insects like grasshoppers and mosquitoes, with both predating the dinosaurs. BTW, insects are probably the most important organisms on Earth. Together, they out-weight the animal kingdom (humans included) many times over, and provide the basis for the food chain in the web of life here on Earth. Without insects, there would be no birds or small mammals. There would not even be a sizable human population as bees are needed for crop and plant pollination.



As far as intelligence goes, I think most species would eventually become smart in the course of their evolution mainly because being intelligent is the best tool for survival. Animals that are highly aware of their environment don't get hunted easily and have much better chances at reproduction. However, the tool usage, which is normally associated with intelligence is mostly limited to the primate family mainly because of the opposable thumbs with allows them to finely manipulate objects in a way that can't be done by dolphins, for example, even though they also have very large brains in proportion to their body sizes.



 

Offline gaden

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Re: Human evolution in modern times
« Reply #2 on: October 23, 2021, 04:05:05 PM »
With the weight gain and sedentary lifestyle what would the course of human evolution be to adapt to those changes.  In order to have an evolutionary advantage humans might evolve leathery butts and smaller heart to decrease blood flow and slow metabolic rate, kind of like a bear in hibernation.

Offline CoconutXO

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Re: Human evolution in modern times
« Reply #3 on: October 23, 2021, 06:56:19 PM »
The adaptation to the sedentary lifestyle common in modern time would have been healthy eating practice, such as portion control or just eating less in general since you won't need that much calorie for daily functioning. The best way to lose weight would be to switch to a vegan/vegetarian diet. Once you stop eating animal protein, the excess weight would just slide off no matter how much you eat, and that's the beauty of a plant-based diet. Being excessively overweight put a strain on your heart because as a pump, it would have to work much harder to circulate a greater volume of blood throughout your body. Health is wealth so taking care of the body is top priority.

Vegetarian pizzas are sold at Wholefoods so try one out next time. Once you go black you can't go back.


Offline Olive Juice

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Re: Human evolution in modern times
« Reply #4 on: October 23, 2021, 07:34:11 PM »
The best way to lose weight isn't necessarily switching diets to vegan/vegetarian, although that would help.  From an evolutionary and adaptation perspective, intermittent fasting is the way to go and that would work with any type of diet. Our ancestors didn't always have food handy, did they? 

Offline CoconutXO

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Re: Human evolution in modern times
« Reply #5 on: October 23, 2021, 08:18:01 PM »
Intermittent fasting is basically the same as eating less, and in term of animal protein consumption, ancient human would had eat much less of them than we are today. They had to hunt for foods and a successful hunt could takes days (with no predictable outcome in term of size of the game animal.) As far as protein goes, I think there's a different between fish proteins and cattle proteins, and the former is healthier than the later. The Japanese, prior to modern time and even today, consume mostly fishes, and they are the healthiest ppl in the world with the longest lifespan. My cousin have visited Japan many times on business trips, and he was always surprised to see old ppl everywhere in the morning heading for work. They don't retire early over there, and it's not uncommon to see 100 year old man/woman riding a bicycle. Now, cattle protein is a different beast all together. An adult cow can weight as much as 1500 pounds, and its proteins can pack a lot of muscle (and fat) on the human body very quickly. Fishes, on the other hand, are much leaner on the human body by comparison since they're smaller organisms. To sum it up, ppl can just eat whatever they want, but the main thing is portion control. I mean, if you weigh 250 pounds on a 5'8 frame, there's no need for a steak (or a chicken quarter) everyday at dinner. Instead of eating beef, you can switch to eating cheese, and instead of chicken, try fried eggs, also a healthier alternative, so veganism/vegetarianism may not even be required for maintaining a healthy body weight.

Dim sum is good too as they often come in small portion

Offline Olive Juice

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Re: Human evolution in modern times
« Reply #6 on: October 23, 2021, 08:41:23 PM »
I'm sure everyone has seen vegan or vegetarian eaters who are overweight.  That picture is best painted by the vegetarian East Indians in America.  It really is not about which food to eat but how much of.  And high protein intake is not only overblown but potentially could be dangerous, especially animal proteins.

Would you say a baby or kid would need the most protein since they're in the growing stage?  If that is the case then why all babies and kids in the history of mankind grew adequately without excessive protein other than from breast milk which is less than 1%? 

Offline CoconutXO

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Re: Human evolution in modern times
« Reply #7 on: October 23, 2021, 10:44:38 PM »
It's easier to pack on weight on a vegetarian diet than the vegan one, which involves plant-based foods only. On the vegetarian diet, you can still eat eggs, cheese, and cream etc., so you're right it would have come down to portion control in order to maintain an ideal weight unless it's strictly veganism, and I've actually have never seen a fat vegan in real life or online. Breast milk, even with just 1% protein, is mostly fat like all milk are, is important to infants because in addition to the basic nutrition that it supplies, the mother's milk also delivers antibodies to help her baby warding off infection. The human infant can communicate with its mother (during feeding) via saliva that travels into the mother's body through the mammary ducts around the nipple area, and the antibodies would be released back to the infant in the milk that it drinks. As far as adequate nutrition goes, it is needed not just in childhood and early adulthood, but also in the womb during the gestation period as well. The fetus' DNA would epigenetically scans its environment even then, and if it detects malnutrition of any sort, then certain genes like the one that's code for height, for example, won't get turned on, and the child would later become shorter as an adult than his/her ideal height would suggests. The average height of ancient Egyptians men is only 5'6 or something like that, and I would attribute this to chronic malnutrition back then as they can't go to a store for cans of infant formula like we do now, and infant formula ultimately comes from cattle's milk, which I have mentioned before that cattle used to be a rich man's estate because only the wealthiest of ancient ppl can afford to keep them. Raising cattle requires large amount of land for grazing, and each adult cow needs to drink 24 gallons of water per day, something that's hard to do before the advent of municipal water.

Offline gaden

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Re: Human evolution in modern times
« Reply #8 on: October 25, 2021, 10:40:36 AM »
The world is getting overweight year after year.  There's no relief in sight unless you change the culture.  Humans probably do not have the will power to regulate themselves.  The only solution is to give up their jobs and become athletes.






But given that obesity in increasing with no stoppage, what would evolution play in the survival of the species?  Will we become seals?



 
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