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  • This episode is sponsored by Bill and Melinda Gates.

  • I have some bad news for you. We're all going to die.

  • In fact, 1.8 people die every second.

  • The main way of knowing how you're gonna die is based on your age.

  • So here are the statistics of how you're likely going to die.

  • Let's move in reverse and begin with those who are 70+ years old.

  • This is the age bracket accounting for nearly half of all deaths worldwide

  • and the leading cause of death in this age group is overwhelmingly heart disease.

  • If you're between the ages of 45 to 64 in the US, cancer is the leading cause of death.

  • In 2016, globally, 8.9 million deaths were attributed to cancers which is 5.7 million more than in 1990.

  • Wait, why has cancer increased so much?

  • It's because as our population grows and lifespans increase, so do the cancer rates.

  • If you die between the age of 25 and 44,

  • the most common cause of death in America is from unintentional poisoning.

  • This may sound strange,

  • but it's because unintentional poisoning as a term includes deaths related to overdosing on drugs.

  • Dying due to drug use in the US has tripled since 1999 to 2016,

  • largely due to the opioid crisis.

  • The data now coming in from 2017 indicates that it is the worst year in US history for overdose fatalities.

  • In fact, in 2017, the death toll from drugs is higher than US military casualties

  • in the Vietnam and Iraq war combined.

  • But this is not the case around the world.

  • In South Africa, the number one killer for this age group is HIV/AIDS

  • and in Brazil, it's homicide.

  • Between 15 to 24 years old in the US, the leading cause of death is motor vehicle accident.

  • Crash risk is particularly high within the first few months of obtaining a license.

  • Also, 53% of these fatalities occur on a Friday, Saturday, or Sunday,

  • with male driver death rates being twice as high as their female counterparts.

  • Teens also have the lowest incidence of wearing a seatbelt,

  • are more likely to speed,

  • and leave a smaller space between drivers.

  • For ages 5 to 14, the leading cause of death is malaria.

  • Malaria is the result of single-celled parasitic microorganisms called plasmodia

  • that are transmitted via mosquitoes.

  • The complexity of the malaria parasite makes developing a vaccine very difficult,

  • but a recent trial is showing promising results.

  • 5.4 million children under the age of 5 died in 2017.

  • The leading cause of death was a variety of neonatal disorders.

  • Though tragic, the death rate among children has dropped dramatically.

  • In 1990, 1 in 11 children under five passed away

  • but in 2017, the number was 1 in 26.

  • So how you will die greatly depends on when you will die.

  • If you make it to old age, heart disease will likely do you in.

  • That being said, 100 years ago influenza was the leading cause of death.

  • So who knows how we will die in the future?

  • But we can do better, and science can help.

  • By reviewing over 40,000 DNA samples voluntarily submitted,

  • geneticists have discovered a link between

  • premature births and the genes that process the mineral selenium.

  • The study found that expectant mothers who carry the gene were more likely to give birth early.

  • 15 million babies are born premature every year

  • and understanding what causes prematurity is hugely important

  • as these babies in the low-income countries are at much higher risk of death.

  • This issue and potential solution is one of the fascinating and surprising issues

  • you can read about in Bill and Melinda Gates' Annual Letter at

  • This year, they're sharing the surprises they've encountered in their work,

  • including the fact that toilets haven't changed in a century

  • and that textbooks are becoming obsolete,

  • and the surprising reasons these two pieces of information are actually really important.

  • You're gonna want to learn about how

  • these surprising moments are prodding them to help make the world a better place,

  • so go check out

  • and subscribe for more weekly science videos every Thursday.

This episode is sponsored by Bill and Melinda Gates.


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B1 中級

これはあなたを殺すことになるだろう (This Will Most Likely Kill You)

  • 277 5
    Taka に公開 2021 年 01 月 14 日