Why do babies cry at night if they don’t want to eat and feel just fine?
There’s a belief that babies cry at night to prevent siblings. David Haig, the author of this theory, assumes that this “ability” developed during evolution because a baby has more chances to survive if their mother doesn’t have other children.
What’s more, Haig thinks that there are certain genes inherited from mother or father that “make” a baby cry at night. In other words, if a baby inherits the mother’s genes, they’ll be interested in another pregnancy and won’t disturb their parents at night, and if a baby inherits the father’s genes, everything’s going to be vice versa because fathers have no guarantee that the next baby will also be his, men and their genes are presumably not interested in ovulation starting again.
How does the brain develop?
After birth, the brain grows really fast: it reaches half its adult size within 3 months. What’s more, being in the womb, a baby is already able to explore the world: scientists think that a fetus sees bright light flashes and recognizes their mother’s voice and even a favorite song.
Why can’t we remember everything from our early childhood?
Infantile amnesia is a phenomenon where we can’t recall events that happened in the first years of our lives. Scientists don’t know why it happens, but one study shows: the process of new brain cell production in children is faster than in adults, and these new cells displace old cells that store our early memories.
How do infants find a nipple on their own if we put them on their mother’s belly?
If you put a baby on their mother’s belly within the first hour of life, they’ll find their mother’s nipple. The thing is, nipples smell like the amniotic fluid where a baby has lived for 9 months. By the way, people’s tastes start developing right in the womb: thus, scientists assume that amniotic fluid may take on an onion flavor if mother eats it. Moreover, when a baby starts eating “adult” food, they may like foods that their mother used to eat while pregnant.
How do newborns see the world?
Newborns see the world in black, white, and grey colors. What’s more, they don’t see things that are further than a distance of 12 inches. If the distance is bigger, objects get too blurry. They distinguish faces and objects that are 10 inches away the best (this is the approximate distance between them and their mothers during breastfeeding.)
It happens because binocular vision, an ability to mix 2 images received by the brain from both eyes, is in the process of developing.
Children can stay in their mothers’ bodies forever.
Children can literally live in their mothers’ brains. Scientists studied the brains of 59 women who’d died between the ages of 32 and 101, and 37 were found to have traces of the male Y chromosome that could appear only during pregnancy after the fetus had shared their new cells.
This interesting phenomenon is called microchimerism. The fetus’ cells get into the mother’s body, create their own copies, and stay there for years. The oldest woman who had the Y chromosome was 94 years old.
A baby can heal a mother’s heart.
A study using mice has helped us make one important discovery: fetus’ stem cells are able to restore their mother’s injured heart after a heart attack. Hina Chaudhry, the scientist who conducted the research, thinks that a fetus heals their mother’s body to increase its chances of survival.
It hasn’t been proven yet that human beings have the same ability, but taking into consideration the fact that a fetus shares their cells with their mother, we can assume that this theory is quite true.
Why do children put everything in their mouths?
In the first 7 months, children can’t discover the world with their fingers: their fine motor skills aren’t developed enough to rub or squeeze objects. But they use their lips and tongue perfectly, so they use their mouth to explore the things around them.
Why do newborns sleep a lot?
Babies’ brains use more than 50% of the glucose from foods they consume while adults’ brains use only 20%. Scientists say that this is the reason why babies need so much sleep: when they sleep, glucose is absorbed faster and better.
Why do newborns eat often?
A baby’s stomach is as small as a hazelnut when they’re born, which is why small children eat so often. There’s no place in their stomach for larger servings. But this organ grows fast: in only 2 weeks, it’s as big as an egg. By the way, it’s also crucial to feed a baby often during the first 6 months.
Which fact surprised you the most? Share your opinion with us in the comments!