Why are there so many twins in Africa?

Research carried out at the University of Lagos Teaching Hospital investigating the multiple twin births points to a high level of a chemical found in the peelings of a particular cassava and yam tubers.

Why are there more twins in Africa?

"The twinning rate in Africa is so high because of the high number of dizygotic twins - twins born from two separate eggs - born there," he said. "This is most likely to be due to genetic differences between the African population and other populations."

Why are Nigerians more likely to have twins?

Central to the Yoruba people's diet are plants with a tuber root, such as yam and cassava. Some residents and experts in Nigeria believe that, due to the high phytoestrogen content in these plants, women are more likely to release more than one egg at a time, which usually leads to twin pregnancies.

Are Africans more likely to have twins?

African-American women are more likely to have twins than any other race. Asian Americans and Native Americans have the lowest twinning rates. White women, especially those older than 35, have the highest rate of higher-order multiple births (triplets or more).

What race has the highest rate of twins?

Race – African-American women are more likely to have twins than any other race. Asian and Native Americans have the lowest twinning rates. Caucasian women, especially those over age 35, have the highest rate of higher-order multiple births (triplets or more).

Why does this town have so many twins? - BBC News

Which parent carries twin gene?

This is why fraternal twins run in families. However, only women ovulate. So, the mother's genes control this and the fathers don't. This is why having a background of twins in the family matters only if it is on the mother's side.

What race has the most offspring?

The fertility rate in the United States in 2020 was 56.0 per 1,000 women ages 15-44. Of all live births in the United States during 2018-2020 (average), 23.7% were Hispanic, 52.1% were white, 15.2% were black, 0.8% were American Indian/Alaska Native and 6.8% were Asian/Pacific Islander.

What country has the highest concentration of twins?

Africa has a high rate of twins born naturally from two separate eggs, and according to the study 80% of twins are now born either in Africa or Asia.

Why is everyone having twins right now?

A big reason for all those twins is an increase in medically assisted reproduction, including in vitro fertilization, ovarian stimulation and artificial insemination. Another reason is that women in many countries are having babies at older ages.

What gender is responsible for twins?

The quick answer to this question is that, in a twin pregnancy, it is the mother's genes that determine twins. First up, giving birth to identical twins is not genetic, but conceiving fraternal twins is. The mother may have the genetic trait of releasing two eggs in one menstrual cycle.

What increases odds of having twins?

Factors that increase the chance of twins include: consuming high amounts of dairy foods, being over the age of 30, and conceiving while breastfeeding. Many fertility drugs including Clomid, Gonal-F, and Follistim also increase the odds of a twin pregnancy.

Who is more likely to carry twins?

if you're pregnant and over 35 you're more likely to have non-identical twins because you're more likely to release more than 1 egg during ovulation. non-identical twins run on the mother's side of the family, probably because of an inherited tendency to release more than 1 egg.

Why are there so many twins in USA?

It has been widely assumed that there has been an increase in twins over the years, largely attributed to fertility treatments.

What country has the lowest rate of twins?

Vietnam was the country with the fewest twins (6.2 per 1,000 births) and Benin was the country with the most (27.9 per 1,000). Over time, some of these developing countries saw increases in twins, but some saw decreases and some stayed the same, with any changes tending to be small.

Why mothers in rich countries are having more twins?

The researchers attributed the surge to an increase in "medically-assisted reproduction" (MAR) since the 1970s when scientific advances produced techniques such as ovarian stimulation and in vitro fertilisation. Both methods are associated with higher odds of producing multiple foetuses in a single pregnancy.

Do twin moms live longer?

Both results were statistically significant. Moms of twins also were older at the time of their last birth. The age at last birth averaged 39.7 years for women born before 1870, and 36.2 years for women born during 1870-1899. Moms of twins had their last births 4.8 months later and 14 months later, respectively.

What is the rarest of twins?

Monoamniotic-monochorionic Twins

These types of twins share a chorion, placenta, and an amniotic sac. This is the rarest type of twin, and it means a riskier pregnancy as the babies can get tangled in their own umbilical cords.

Where is the twin capital of the world?

In Nigeria, a growing city called Igbo-Ora is known as the twin capital due to it having the highest rate of twin births in the world. The town is the home of the annual World Twins Festival, which celebrates the many twins that reside in their community.

Which race has the most single mothers?

When it comes to single parent statistics by race, US census data shows that the predominant ethnicity of single parent mothers and fathers is white non-Hispanic. This is followed by African American single mothers then Hispanic single mothers. The ethnicity with the least number of single parents are Asians.

What percentage of Americans have 2 kids?

A plurality (41%) of moms at the end of their childbearing years now report having two kids, while just 14% have four or more children.

How common are black twins?

In the U.S., twins are most common in African-Americans (36.8 per 1000) and least common in Hispanic/Latino Americans (21.8 per 1000).

How rare is a twin birth?

The chances of having identical twins is relatively rare. For every 1,000 births, identical twins happen every 3rd or 4th. Although, the use of fertility treatments will increase the risk of having identical twins. Identical twins actually make up 0.95% of pregnancies that were conceived with treatment.