What happens to our bodies after we die Farnaz Khatibi Jafari

Since the dawn of humanity,

an estimated 100.8 billion
people have lived and died,

a number that increases by about
.8% of the world’s population each year.

What happens to all
of those people’s bodies after they die

and will the planet eventually
run out of burial space?

When a person’s heart stops beating,

the body passes through several
stages before it begins decomposing.

Within minutes after death,

the blood begins settling in
the lower-most parts of the body.

Usually eight to twelve hours later,

the skin in those areas is discolored
by livor mortis, or post-mortem stain.

And while at the moment of death
the body’s muscles relax completely

in a condition called primary flaccidity,

they stiffen about two to six hours later
in what’s known as rigor mortis.

This stiffening spreads
through the muscles,

and its speed can be affected by age,
gender, and the surrounding environment.

The body also changes temperature,

usually cooling off
to match its environment.

Next comes decomposition,

the process by which bacteria and insects
break apart the body.

Many factors affect
the rate of decomposition.

There is, however, a basic guide of the
effect of the environment on decompositon

called Casper’s Law.

It says that if all other
factors are equal,

a body exposed to air decomposes twice
as fast as one immersed in water

and eight times as fast
as one buried in earth.

Soil acidity also greatly
affects bone preservation.

High-acidity soils with
a pH of less than 5.3

will rapidly decompose bone,

whereas in a neutral or basic soil
with a pH of 7 or more,

a skeleton can remain in relatively
good condition for centuries.

Different cultures throughout history have
developed unique approaches to burials.

As far back as
the first Neanderthal burials,

death was accompanied by rituals,

like the positioning, coloring,
or decorating of corpses.

Traditional Christian burials decorate
the body in dress,

while in traditional Islam,

a body is wrapped in a piece
of ritual fabric

with the face oriented toward Mecca.

Traditional Hindus ceremonially burn
the body,

and Zoroastrians, followers of one of the
oldest monotheistic religions,

traditionally place bodies atop a tower
to expose them to the Sun

and scavenging birds.`

Before the Industrial Revolution,
burials were simple and accessible.

These days, with suitable burial land
running out in high-population areas,

purchasing private gravesites
can be costly,

and many people can’t afford
simple burials.

Even cremation, the second most common
burial practice in the world,

comes with a high cost.

As for the question
of running out of space,

the issue isn’t so much about total land
in the world

as it is that large populations cluster
together within cities.

Most of the big cities in the world

may run out of suitable burial grounds
within a century.

For London, it’s even sooner.

That may happen by 2035.

So are there alternatives
to traditional burials

that might help with the space issue?

In some countries, skyscraper cemeteries
enable vertical burials.

Some options focus on the body’s
relationship with the environment.

Promession, for example, freeze-dries
and pulverizes the body,

creating a powder
that can turn into compost

when mixed with oxygen and water.

There are also green burials that use
special materials,

such as biodegradable caskets,

urns that sprout trees,

and burial suits that grow mushrooms.

Eternal reefs take that concept
to the depths of the ocean

using a mixture of ashes and cement
to create marine habitats for sea life.

Death is an inevitable part
of the human condition,

but how we treat bodies and burials
continues to evolve.

We may each have different spiritual,

religious,

or practical approaches to dying,

but the ever-increasing demand
for burial space

might give us a push to be creative

about where our bodies go
after the final stages of life.

自人类诞生以来,

估计有 1008 亿
人生活和死亡,

这个数字每年增加约
0.8% 的世界人口。

所有这些人死后的尸体

会发生什么,地球最终会
耗尽墓地吗?

当一个人的心脏停止跳动时

,身体
在开始分解之前会经历几个阶段。

死后几分钟内

,血液开始沉淀在
身体的最下部。

通常在 8 到 12 小时后,

这些区域的皮肤会
因 livor mortis 或死后染色而变色。

虽然在死亡的那一刻,
身体的肌肉

在一种称为原发性松弛的状态下完全放松,

但它们会在大约两到六个小时后变得僵硬
,这就是所谓的尸僵。

这种僵硬会
通过肌肉扩散

,其速度会受到年龄、
性别和周围环境的影响。

身体也会改变温度,

通常会冷却
以适应环境。

接下来是分解

,细菌和昆虫
分解身体的过程。

许多因素会
影响分解速度。

然而,有一个
关于环境对分解影响的基本指南,

称为卡斯珀定律。

它说,如果所有其他
因素都相同,

暴露在空气中的尸体分解的
速度是浸入水中的尸体的

两倍,是埋在地下的尸体的八倍。

土壤酸度也极大地
影响骨骼保存。

pH 值小于 5.3 的高酸性土壤

会迅速分解骨骼,

而在 pH 值 7 或更高的中性或碱性土壤中

,骨骼可以保持相对
良好的状态几个世纪。

历史上不同的文化
发展出独特的墓葬方法。


在第一个尼安德特人的墓葬中,

死亡就伴随着仪式,

比如尸体的定位、着色
或装饰。

传统的基督教葬礼
用礼服装饰尸体,

而在传统的伊斯兰教中

,尸体被包裹在
一块仪式织物

中,面部朝向麦加。

传统的印度教徒仪式性地
焚烧尸体,

而琐罗亚斯德教徒是
最古老的一神论宗教的追随者,

传统上将尸体放在塔顶
,让它们暴露在阳光下

和食腐鸟类。`

在工业革命之前,
葬礼简单易行。

如今,在人口稠密的地区,合适的墓地已经
不多,

购买私人墓地
的成本很高

,很多人买不起
简单的墓地。

即使是火葬这种世界上第二常见的
埋葬方式,也

需要付出高昂的代价。

至于
空间不足

的问题,问题不
在于世界上的总土地面积,

而在于大量人口
聚集在城市中。

世界上大多数大城市

可能会
在一个世纪内用完合适的墓地。

对于伦敦来说,它甚至更快。

这可能会在 2035 年发生。

那么,是否有
替代传统墓葬的方法

可能有助于解决太空问题?

在一些国家,摩天大楼墓地
可以垂直埋葬。

一些选项侧重于身体
与环境的关系。

例如,Promession 冷冻干燥
并粉碎身体,

形成一种粉末

当与氧气和水混合时可以变成堆肥。

还有使用
特殊材料的绿色墓葬,

例如可生物降解的棺材,

发芽树木的骨灰盒,

以及种植蘑菇的墓葬服。

永恒的珊瑚礁

使用灰烬和水泥的混合物将这一概念
带到海洋深处,为海洋生物创造海洋栖息地。

死亡
是人类生活中不可避免的一部分,

但我们对待尸体和墓葬的方式在
不断发展。

我们每个人可能有不同的精神、

宗教

或实际的死亡方法,

但对墓地的不断增长的需求

可能会促使我们

在生命的最后阶段之后对我们的身体去哪里进行创造性的探索。